Update

app/Models/TrackingContentSelection.php

@@ -2,9 +2,8 @@
 
 namespace App\Models;
 
-use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
-use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Database\Eloquent\Model;
 
 class TrackingContentSelection extends Model
 {
@@ -41,11 +40,11 @@ public function content()
         if ($this->content_type === 'meme') {
             return $this->belongsTo(MemeMedia::class, 'content_id');
         }
-        
+
         if ($this->content_type === 'background') {
             return $this->belongsTo(BackgroundMedia::class, 'content_id');
         }
-        
+
         return null;
     }
-}
+}