Hello all,
after updating from version 1.17.1 to version 1.17.3 / Patch 1, unfortunately I can no longer attach images in tickets.
Old images, from already created tickets are still displayed.

I have seen this error on several forums, but never with an adequate solution.
A complete reinstallation of OSTicket is out of the question for us, we have already processed too many tickets.
Funnily enough, the error also occurs when I want to install the "OSTicket Awesome" theme, for example.
With version 1.17.1 everything worked without problems. I noticed the error because I wanted to switch to OSTicket Awesome.
Since this did not work, I tried the update 1.17.3, with the same result.