修改

app/Models/ActivityReward.php

@@ -20,7 +20,7 @@ class ActivityReward extends BaseModel
     const STATUS_DOWN = 0;
 
     protected $table = 'activity_rewards';
-    protected $fillable = ['title', 'sub_title', 'detail_image', 'start_time', 'end_time', 'status','type','lang'];
+    protected $fillable = ['title', 'sub_title', 'detail_image', 'start_time', 'end_time', 'status','type','lang','content', 'params','pc_image'];
 
     public function activityUser(): HasMany
     {