Debian 10 buster, phpV8.0.22 mariaDB 10.3.34, apache 2.4.38.
We have attempted this upgrade at least a dozen times now. We get to the osTicket upgrader and "Error: something went wrong". the upgrade completes, but navigation of the site stops working with a white screen. I have scoured the forum, and there are vague references to php errors, but I am unsure where to look for those. We have backups, and I even built a duplicate "test/dummy" box so I quit trashing the production box. Both live and test do exactly the same thing.
v1.16.1 and v1.16.2 do not even let the upgrader run. .3 is the closest to working.
Any hints/tips/tricks/pointers would be appreciated.
Many thanks in advance.