Hello AS, I'm trying to upgrade from 5.0.2 to 5.0.3. It doesn't work. I think I have a problem with the tmp file. I can't edit the php.ini because I don't have access to it. Access is prohibited by the provider.

Heed the warnings:
normal update via update
Server error
Joomla Update encountered a server error while applying the update to your website.
Your website may not have been fully updated to the new Joomla version.
Update via upload
Warning: PHP temporary folder is not set.
This folder is the folder that PHP uses to store an uploaded file before Joomla can access that file. Although it is not always a problem that the folder is not set, manifest files or uploaded files may not be recognized if you set this in your php.ini file.

What do you suggest? What could I try?

Best regards Adrian