diff --git a/app/Http/Controllers/AdminPeminjamanController.php b/app/Http/Controllers/AdminPeminjamanController.php
index 722d92f..12af923 100644
--- a/app/Http/Controllers/AdminPeminjamanController.php
+++ b/app/Http/Controllers/AdminPeminjamanController.php
@@ -6,10 +6,8 @@
 use App\Models\Buku;
 use App\Models\Anggota;
 use Illuminate\Http\Request;
-use Barryvdh\DomPDF\Facade\Pdf;
 use Illuminate\Support\Facades\Http;
 use Illuminate\Support\Facades\Log;
-use Illuminate\Support\Facades\Storage;
 
 class AdminPeminjamanController extends Controller
 {
@@ -197,42 +195,42 @@ private function prediksiLokasiRakUntukAdmin($nomor_panggil)
 
         return match (true) {
             $kode_utama >= 0 && $kode_utama <= 99 => match (true) {
-                    $kode_utama <= 19 => ['rak' => 'Rak 01', 'area' => 'Karya Umum'],
-                    $kode_utama <= 50 => ['rak' => 'Rak 02', 'area' => 'Karya Umum'],
-                    default => ['rak' => 'Rak 03-05', 'area' => 'Karya Umum Lainnya'],
-                },
+                $kode_utama <= 19 => ['rak' => 'Rak 01', 'area' => 'Karya Umum'],
+                $kode_utama <= 50 => ['rak' => 'Rak 02', 'area' => 'Karya Umum'],
+                default => ['rak' => 'Rak 03-05', 'area' => 'Karya Umum Lainnya'],
+            },
             $kode_utama >= 100 && $kode_utama <= 199 => match (true) {
-                    $kode_utama <= 150 => ['rak' => 'Rak 06-10', 'area' => 'Filsafat'],
-                    default => ['rak' => 'Rak 11-14', 'area' => 'Psikologi'],
-                },
+                $kode_utama <= 150 => ['rak' => 'Rak 06-10', 'area' => 'Filsafat'],
+                default => ['rak' => 'Rak 11-14', 'area' => 'Psikologi'],
+            },
             $kode_utama >= 200 && $kode_utama <= 299 => match (true) {
-                    $kode_utama == 297 => ['rak' => 'Rak 25-32', 'area' => 'Agama Islam'],
-                    default => ['rak' => 'Rak 15-24', 'area' => 'Agama Umum'],
-                },
+                $kode_utama == 297 => ['rak' => 'Rak 25-32', 'area' => 'Agama Islam'],
+                default => ['rak' => 'Rak 15-24', 'area' => 'Agama Umum'],
+            },
             $kode_utama >= 300 && $kode_utama <= 399 => match (true) {
-                    $kode_utama <= 330 => ['rak' => 'Rak 33-36', 'area' => 'Sosiologi & Politik'],
-                    $kode_utama <= 360 => ['rak' => 'Rak 37-40', 'area' => 'Ekonomi & Hukum'],
-                    default => ['rak' => 'Rak 41-44', 'area' => 'Pendidikan & Adat'],
-                },
+                $kode_utama <= 330 => ['rak' => 'Rak 33-36', 'area' => 'Sosiologi & Politik'],
+                $kode_utama <= 360 => ['rak' => 'Rak 37-40', 'area' => 'Ekonomi & Hukum'],
+                default => ['rak' => 'Rak 41-44', 'area' => 'Pendidikan & Adat'],
+            },
             $kode_utama >= 400 && $kode_utama <= 499 => ['rak' => 'Rak 45', 'area' => 'Bahasa'],
             $kode_utama >= 500 && $kode_utama <= 599 => ['rak' => 'Rak 46-48', 'area' => 'Ilmu Murni'],
             $kode_utama >= 600 && $kode_utama <= 699 => match (true) {
-                    $kode_utama <= 610 => ['rak' => 'Rak 49-53', 'area' => 'Kedokteran'],
-                    $kode_utama <= 630 => ['rak' => 'Rak 54-58', 'area' => 'Teknik'],
-                    $kode_utama <= 650 => ['rak' => 'Rak 59-63', 'area' => 'Pertanian'],
-                    default => ['rak' => 'Rak 64-68', 'area' => 'Manajemen Bisnis'],
-                },
+                $kode_utama <= 610 => ['rak' => 'Rak 49-53', 'area' => 'Kedokteran'],
+                $kode_utama <= 630 => ['rak' => 'Rak 54-58', 'area' => 'Teknik'],
+                $kode_utama <= 650 => ['rak' => 'Rak 59-63', 'area' => 'Pertanian'],
+                default => ['rak' => 'Rak 64-68', 'area' => 'Manajemen Bisnis'],
+            },
             $kode_utama >= 700 && $kode_utama <= 799 => match (true) {
-                    $kode_utama <= 739 => ['rak' => 'Rak 71', 'area' => 'Kesenian'],
-                    $kode_utama <= 769 => ['rak' => 'Rak 72', 'area' => 'Seni Rupa'],
-                    $kode_utama <= 789 => ['rak' => 'Rak 73', 'area' => 'Fotografi/Musik'],
-                    default => ['rak' => 'Rak 74', 'area' => 'Olahraga'],
-                },
+                $kode_utama <= 739 => ['rak' => 'Rak 71', 'area' => 'Kesenian'],
+                $kode_utama <= 769 => ['rak' => 'Rak 72', 'area' => 'Seni Rupa'],
+                $kode_utama <= 789 => ['rak' => 'Rak 73', 'area' => 'Fotografi/Musik'],
+                default => ['rak' => 'Rak 74', 'area' => 'Olahraga'],
+            },
             $kode_utama >= 800 && $kode_utama <= 899 => ['rak' => 'Rak 77-79', 'area' => 'Sastra'],
             $kode_utama >= 900 && $kode_utama <= 999 => match (true) {
-                    $kode_utama <= 919 => ['rak' => 'Rak 69, 70', 'area' => 'Geografi'],
-                    default => ['rak' => 'Rak 80-84', 'area' => 'Sejarah Umum'],
-                },
+                $kode_utama <= 919 => ['rak' => 'Rak 69, 70', 'area' => 'Geografi'],
+                default => ['rak' => 'Rak 80-84', 'area' => 'Sejarah Umum'],
+            },
             default => ['rak' => 'Rak 75-76', 'area' => 'Koleksi Terbaru'],
         };
     }
@@ -247,7 +245,7 @@ public function update(Request $request, $id)
         ]);
 
         $peminjaman = Peminjaman::findOrFail($id);
-        
+
         // If the book changed, adjust stock
         if ($peminjaman->id_buku != $validated['id_buku']) {
             if ($peminjaman->status_peminjaman == 'Dipinjam') {
@@ -267,7 +265,7 @@ public function update(Request $request, $id)
     public function destroy($id)
     {
         $peminjaman = Peminjaman::findOrFail($id);
-        
+
         if ($peminjaman->status_peminjaman == 'Dipinjam' && $peminjaman->buku) {
             $peminjaman->buku->increment('eksemplar');
         }
@@ -280,7 +278,7 @@ public function destroy($id)
     public function kembalikan($id)
     {
         $peminjaman = Peminjaman::findOrFail($id);
-        
+
         $tglTenggat = \Carbon\Carbon::parse($peminjaman->tanggal_kembali)->startOfDay();
         $tglSekarang = \Carbon\Carbon::now()->startOfDay();
 
diff --git a/app/Http/Controllers/PeminjamanController.php b/app/Http/Controllers/PeminjamanController.php
index 8eb5fa7..9a20d49 100644
--- a/app/Http/Controllers/PeminjamanController.php
+++ b/app/Http/Controllers/PeminjamanController.php
@@ -9,7 +9,6 @@
 use Barryvdh\DomPDF\Facade\Pdf;
 use Illuminate\Support\Facades\Http;
 use Illuminate\Support\Facades\Log;
-use Illuminate\Support\Facades\Storage;
 
 class PeminjamanController extends Controller
 {
@@ -110,9 +109,9 @@ public function store(Request $request)
                 $response = Http::withoutVerifying()->timeout(15)->withHeaders([
                     'Authorization' => $fonnteToken,
                 ])->attach('file', file_get_contents($filePath), $fileName)->post('https://api.fonnte.com/send', [
-                            'target' => $targetNum,
-                            'message' => "Halo Kak *{$peminjaman->anggota->nama}*! 📚✨\n\nTerima kasih telah meminjam buku di *Perpustakaan Daerah Jember*.\n\nBersama pesan ini, kami lampirkan file e-Struk (PDF) untuk peminjaman buku:\n📖 Judul: _{$peminjaman->buku->judul}_\n📅 Batas Kembali: *{$peminjaman->tanggal_kembali}*\n\nMohon simpan dokumen PDF ini sebagai bukti transaksi yang sah. Harap kembalikan buku tepat waktu untuk menghindari denda keterlambatan.\n\nSelamat menikmati waktu membaca Anda!\n\nSalam Literasi,\n*Sistem Sarakata Jember*"
-                        ]);
+                    'target' => $targetNum,
+                    'message' => "Halo Kak *{$peminjaman->anggota->nama}*! 📚✨\n\nTerima kasih telah meminjam buku di *Perpustakaan Daerah Jember*.\n\nBersama pesan ini, kami lampirkan file e-Struk (PDF) untuk peminjaman buku:\n📖 Judul: _{$peminjaman->buku->judul}_\n📅 Batas Kembali: *{$peminjaman->tanggal_kembali}*\n\nMohon simpan dokumen PDF ini sebagai bukti transaksi yang sah. Harap kembalikan buku tepat waktu untuk menghindari denda keterlambatan.\n\nSelamat menikmati waktu membaca Anda!\n\nSalam Literasi,\n*Sistem Sarakata Jember*"
+                ]);
 
                 // Cek respon resmi fonnte API
                 if ($response->successful() && ($response->json('status') == true)) {
@@ -128,7 +127,6 @@ public function store(Request $request)
             if (file_exists($filePath)) {
                 unlink($filePath);
             }
-
         } catch (\Exception $e) {
             // Bila error (misal: memori PDF kurang, library dompdf crash, timeout dari Fonnte)
             // Error ditangkap agar sistem tidak langsung menampilkan layar error 500 ke User.
@@ -184,4 +182,4 @@ public function indexPengembalian()
 
         return view('admin.peminjaman.pengembalian', compact('pengembalian'));
     }
-}
\ No newline at end of file
+}
diff --git a/database/migrations/2026_05_01_000001_fix_peminjaman_buku_fk_to_buku.php b/database/migrations/2026_05_01_000001_fix_peminjaman_buku_fk_to_buku.php
new file mode 100644
index 0000000..4b821da
--- /dev/null
+++ b/database/migrations/2026_05_01_000001_fix_peminjaman_buku_fk_to_buku.php
@@ -0,0 +1,57 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    public function up(): void
+    {
+        try {
+            DB::statement('ALTER TABLE peminjaman DROP FOREIGN KEY peminjaman_ibfk_2');
+        } catch (\Throwable $e) {
+        }
+
+        try {
+            DB::statement('ALTER TABLE peminjaman DROP FOREIGN KEY fk_peminjaman_buku');
+        } catch (\Throwable $e) {
+        }
+
+        try {
+            Schema::table('peminjaman', function (Blueprint $table) {
+                $table->dropForeign(['id_buku']);
+            });
+        } catch (\Throwable $e) {
+        }
+
+        DB::statement('ALTER TABLE peminjaman MODIFY id_buku INT UNSIGNED NOT NULL');
+
+        Schema::table('peminjaman', function (Blueprint $table) {
+            $table->foreign('id_buku')
+                ->references('id_buku')
+                ->on('buku')
+                ->cascadeOnDelete();
+        });
+    }
+
+    public function down(): void
+    {
+        try {
+            Schema::table('peminjaman', function (Blueprint $table) {
+                $table->dropForeign(['id_buku']);
+            });
+        } catch (\Throwable $e) {
+        }
+
+        DB::statement('ALTER TABLE peminjaman MODIFY id_buku BIGINT UNSIGNED NOT NULL');
+
+        Schema::table('peminjaman', function (Blueprint $table) {
+            $table->foreign('id_buku')
+                ->references('id')
+                ->on('bukus')
+                ->cascadeOnDelete();
+        });
+    }
+};
diff --git a/resources/views/admin/peminjaman/create.blade.php b/resources/views/admin/peminjaman/create.blade.php
index 8b680c5..ffd39bc 100644
--- a/resources/views/admin/peminjaman/create.blade.php
+++ b/resources/views/admin/peminjaman/create.blade.php
@@ -41,7 +41,7 @@ class="w-full border-gray-300 rounded-lg shadow-sm focus:border-blue-500 focus:r
                         class="w-full border-gray-300 rounded-lg shadow-sm focus:border-blue-500 focus:ring-blue-500">
                         <option value="">-- Pilih Buku --</option>
                         @foreach ($buku as $b)
-                            <option value="{{ $b->id }}" {{ old('id_buku') == $b->id ? 'selected' : '' }}>
+                            <option value="{{ $b->id_buku }}" {{ old('id_buku') == $b->id_buku ? 'selected' : '' }}>
                                 {{ $b->bibid }} - {{ $b->judul }} (Stok: {{ $b->eksemplar }})
                             </option>
                         @endforeach
diff --git a/resources/views/admin/peminjaman/index.blade.php b/resources/views/admin/peminjaman/index.blade.php
index 52589f0..fcb7c7e 100644
--- a/resources/views/admin/peminjaman/index.blade.php
+++ b/resources/views/admin/peminjaman/index.blade.php
@@ -251,7 +251,8 @@ class="mt-1 block w-full border-gray-300 focus:border-indigo-500 focus:ring-indi
                                 required>
                                 <option value="">-- Pilih Buku --</option>
                                 @foreach ($buku as $b)
-                                    <option value="{{ $b->id }}" {{ old('id_buku') == $b->id ? 'selected' : '' }}>
+                                    <option value="{{ $b->id_buku }}"
+                                        {{ old('id_buku') == $b->id_buku ? 'selected' : '' }}>
                                         {{ $b->bibid }} - {{ $b->judul }} (Stok: {{ $b->eksemplar }})
                                     </option>
                                 @endforeach
@@ -440,7 +441,7 @@ class="mt-1 block w-full border-gray-300 focus:border-indigo-500 focus:ring-indi
                                 required>
                                 <option value="">-- Pilih Buku --</option>
                                 @foreach ($buku as $b)
-                                    <option value="{{ $b->id }}">{{ $b->bibid }} - {{ $b->judul }}
+                                    <option value="{{ $b->id_buku }}">{{ $b->bibid }} - {{ $b->judul }}
                                     </option>
                                 @endforeach
                             </select>