Correct errors in migration

database/migrations/2025_06_20_175904_create_doublers_table.php

@@ -1,6 +1,7 @@
 <?php
 
 use App\Models\Entry;
+use App\Models\Event;
 use App\Models\Student;
 use Illuminate\Database\Migrations\Migration;
 use Illuminate\Database\Schema\Blueprint;
@@ -20,7 +21,7 @@ return new class extends Migration
 
             // Doubler Specific Fields
             $table->integer('entry_count');
-            $table->foreignIdFor(Entry::class, 'accepted_entry')->nullable()->constrained()->cascadeOnDelete()->cascadeOnUpdate();
+            $table->foreignIdFor(Entry::class, 'accepted_entry')->nullable()->constrained('entries')->cascadeOnDelete()->cascadeOnUpdate();
 
             // Set the composite primary key
             $table->primary(['student_id', 'event_id']);