Server : Apache System : Linux server1.cgrithy.com 3.10.0-1160.95.1.el7.x86_64 #1 SMP Mon Jul 24 13:59:37 UTC 2023 x86_64 User : nobody ( 99) PHP Version : 8.1.23 Disable Function : NONE Directory :  /var/softaculous/webtrees/

Upload File : current_dir [ Writeable ] document_root [ Writeable ]

1. Check app/Services/HousekeepingService.php and index.php to delete unwanted files from previous version while upgrade and update upgrade.php accordingly.
2. PHP REQUIREMENT LINK: https://webtrees.net/install/requirements/
3. Download webtrees-x.y.z.zip package from github and not source code as webtrees-x.y.z.zip contains language files.(confirmed vendor)
4. Delete entries of SITE_UUID,LATEST_WT_VERSION and LATEST_WT_VERSION_TIMESTAMP from site_setting and log table, created when accessed.