MassAssignmentException in updateorcreate in laravel 5.4

I am newbie to laravel I am using updateorcreate for model. But this is showing error MassAssignmentException end_time In Model Tasktimelog I am using protected $guarded = array(); Here is what I am Doing.

$endtask= Tasktimelog::updateOrCreate(
        [
            'task_id' => $taskid, 
            'action_type'=>4, 
            'user_id'=> auth()->id()
        ],
        [
          'end_time'             => $endtimeis,
          'total_time'           => request('totalseconds'), 
          'remark'               => request('remark'), 
          'actual_complete_time' => $diff, 
          'project_id'           => $getprojectid->project_id
        ]);

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