Hi,
Would you fill out the 'Environment' section of this threat?

No, I haven't done anything for a while

When I deleted the gallery from the files in the cPanel, the website crashed completely
give me 'An unexpected error occurred.
Symfony\Component\ClassLoader\MapClassLoader::loadClass(): Failed opening required '/home2/travelsh/public_html/packages/whale_grid_gallery/controller.php' (include_path='/home2/travelsh/public_html/concrete/vendor:.:/opt/cpanel/ea-php70/root/usr/share/pear')'

Hi,
I need to know your website environment (your concrete version, the grid gallery version you are using, etc). Plz, provide them up by pasting from:
Dashboard » System & Settings » Environment Information

Hi
Thanks for help و
# concrete5 Version
Core Version - 5.7.5.13
Version Installed - 5.7.5.13
Database Version - 20160615000000

# concrete5 Packages
Whale Grid Gallery (1.0.3)

Hi,
Did you purchase the new version or the version from the old 5.6? Could you provide me with your order numbers and purchase date, so I can check?

yes It's an old version from 5.6 It was purchased a long time ago in 2017 and it was working fine. This unexpected problem appeared weeks ago and requested an update, but when I try to update it gives me Give me 'Update Add-Ons
No updates for your add-ons are available.

I see. It's a completely different marketplace and all. For making it works, you need to purchase the new version and override it.
If you are not planning to use the add-on anymore, I think you can uninstall it manually. You should be able to find a guide on this by looking at the general forum.

I tried uninstall it manually but it crashed the website completely

give me 'An unexpected error occurred.
Symfony\Component\ClassLoader\MapClassLoader::loadClass(): Failed opening required '/home2/travelsh/public_html/packages/whale_grid_gallery/
controller.php' (include_path='/home2/travelsh/public_html/concrete/vendor:.:/opt/cpanel/ea-php70/root/usr/share/pear')'


Unfortunately, this affected all pages, so I cannot edit anything