I’ve had the same problem, it won’t upload to a gallery and says to check PHP error logs,
message says;
‘an unexpected error has occurred. Most likely a server misconfiguration. Check PHP logs or ask your provider’
I got my hosting company to check why it’s happening, and there is nothing in the logs and after trying lots of options, have told me to bring it to the plugin author.
It was working great all along until recently.
Help please?
Kellie