# Theme Upload Troubleshooting
WARNING
Warning: Are You Sure You Want To Do This?
This message indicates a tight upload size file limit. If you encounter this message, try installing the theme via FTP instead of using the admin panel. Alternatively, ask your hosting company to increase the upload limit if possible.
WARNING
Error: Unpacking the package...
Installing the theme...
The package could not be installed. The theme is missing the style.css stylesheet.
Theme install failed.
You may have uploaded the wrong zip package to WordPress. Remember, you need to upload only the installable theme file (it should be named 📄 cassio.zip). Please refer to this article (opens new window) for a fix.
WARNING
Error: Fatal Error: Maximum Execution Time Exceeded in WordPress
Other similar issues:
- White screen
- Empty page content
500, 501and other50xerrors
These problems are related to low PHP configuration limits. The solution is to increase the PHP limits. You can do this yourself or contact your web hosting provider and ask them to increase those limits to a minimum as recommended in the Server Requirements section.
# Checking Server Configuration
You can verify your PHP configuration limits by checking the Site Health section in your admin panel.
Info button
Server section
Double-check all the key numbers as underlined in the screenshot above. If your server has low configuration limits, please contact your hosting provider and ask them to increase those. More information related to recommended PHP limits can be found in the Server Requirements.