Fix date instance

app/Http/Controllers/ActivityController.php

@@ -399,7 +399,7 @@ class ActivityController extends Controller
     }
     $projectStart = Project::select('mulai_proyek')->where('id', $projectId)->first();
 		foreach ($data['activities'] as $i => $activity_row) {
-			$startDate = \DateTime::createFromFormat('Y-m-d H:i:s.uP', $projectStart->mulai_proyek);
+			$startDate = new \DateTime($projectStart->mulai_proyek);
       $endDate = clone $startDate;
       $endDate->modify('-1 day');
       $daysRemaining = $activity_row['duration'];