I've since transferred the site manually, but now get the following error:
Warning: session_start(): Failed to read session data: user (path: /opt/alt/php73/var/lib/php/session) in /home/pittsbur/public_html/libraries/joomla/session/handler/native.php on line 260
Error: Failed to start application: Failed to start the session
The site is being migrated from dedicated cloud hosting on Siteground (my dev site) to the customer's shared hosting on Rochen. I changed the PHP version on Rochen from 5.6 to 7.3 prior to uploading files. (was running on 7.3.14 on my host).
It sounds like both my Kickstart error and session error are related. Any thoughts?