Fatal error: Uncaught Error: Using $this when not in object context in /home/clmepl5/public_html/web/app/plugins/the-events-calendar/src/admin-views/aggregator/tab.php:2 Stack trace: #0 {main} thrown in /home/clmepl5/public_html/web/app/plugins/the-events-calendar/src/admin-views/aggregator/tab.php on line 2