I also just updated to the latest version of the plugin today and got the same error that @indiastartup360 also got. The website went down and I couldn’t access the WP dashboard. So I too deactivated the plugin via FTP and everything came back. Please let me know if there is a fix for this as I am using the Exhibz theme which requires this plugin.
I checked the error log file and this was the error that kept showing up.
[26-Jul-2022 08:42:32 UTC] PHP Parse error: syntax error, unexpected ‘)’ in /home/pbnhccom/virtual.pbnhc.com/wp-content/plugins/wp-event-solution/bootstrap.php on line 368