Events Calandar Fatal Error

I’ve received an automated WordPress message alerting me that the Event Calandar has created a fatal error on my site.

I can now only access my site via Recovery Mode.

This is what I see in the Plug In Description.

An error of type E_ERROR was caused in line 1 of the file /www/wp-content/plugins/the-events-calendar/the-events-calendar.php. Error message: Uncaught Error: Function name must be a string in /www/wp-content/plugins/the-events-calendar/the-events-calendar.php:1 Stack trace: #0 /wordpress/wp-settings.php(431): include_once() #1 /www/wp-config.php(113): require_once('/wordpress/wp-s...') #2 /wordpress/wp-config.php(5): require('/www/wp-config....') #3 /wordpress/wp-load.php(50): require_once('/wordpress/wp-c...') #4 /wordpress/wp-login.php(12): require('/wordpress/wp-l...') #5 {main} thrown

I installed version 6 to see whether this would clear the issue but no change.

Any assistance gratefully appreciated!

Thanks
Nick