Hello Tim Burleigh !

According to this record in your error_log:

[27-Sep-2021 17:48:46 UTC] PHP Fatal error: require_once(): Failed opening required '/home/upbeatm1/public_html/modules/boonex/organizations/classes/BxOrgsSearchResult.php' (include_path='.:/opt/cpanel/ea-php71/root/usr/share/pear') in /home/upbeatm1/public_html/inc/classes/BxDolSearch.php on line 97

I may see that UNA still tries to include the Organisations app to the search procedure. You may try to execute the following query (backup the DB first):

DELETE FROM `sys_objects_search` WHERE `Name` like 'bx_organizations%';