Fatal Error Suddenly Appeared

Note that this also happened in event tickets and I’ve also opened a ticket there, but wanted to post here as well since it’s also affecting the events calendar. Site was working fine last night. Went to log in just now and got a fatal error:

An error of type E_ERROR was caused in line 162 of the file /home/(directory/(url)/wp-content/plugins/the-events-calendar/common/src/Common/Libraries/Harbor.php. Error message: Uncaught Error: Call to undefined method Tribe__PUE__Checker::is_key_valid() in /home/(directory/(url)/wp-content/plugins/the-events-calendar/common/src/Common/Libraries/Harbor.php:162 Stack trace: #0 /home/(directory/(url)/wp-includes/class-wp-hook.php(341): TEC\Common\Libraries\Harbor->register_legacy_licenses() #1 /home/(directory/(url)/wp-includes/plugin.php(205): WP_Hook->apply_filters() #2 /home/(directory/(url)/wp-content/plugins/the-events-calendar/common/vendor/vendor-prefixed/stellarwp/harbor/src/Harbor/Legacy/License_Repository.php(32): apply_filters() #3 /home/(directory/(url)/wp-content/plugins/the-events-calendar/common/vendor/vendor-prefixed/stellarwp/harbor/src/Harbor/Legacy/License_Repository.php(76): TEC\Common\LiquidWeb\Harbor\Legacy\License_Repository->all() #4 /home/(directory/(url)/wp-content/plugins/the-events-calendar/common/vendor/vendor-prefixed/stellarwp/harbor/src/Harbor/Legacy/Notices/License_Notice_Handler.php(75): TEC\Common\LiquidWeb\Harbor\Legacy\License_Repository->all_inactive() #5 /home/(directory/(url)/wp-includes/class-wp-hook.php(339): TEC\Common\LiquidWeb\Harbor\Legacy\Notices\License_Notice_Handler->display() #6 /home/(directory/(url)/wp-includes/class-wp-hook.php(365): WP_Hook->apply_filters() #7 /home/(directory/(url)/wp-includes/plugin.php(522): WP_Hook->do_action() #8 /home/(directory/(url)/wp-admin/admin-header.php(313): do_action() #9 /home/(directory/(url)/wp-admin/index.php(137): require_once('/home/chiclezd/...') #10 {main} thrown