Can't delete a view or uninstall a module. Anyone help? thanks

When I tried to delete a view, or uninstall a module, the page will jump to install.php ( yourDomain/core/install.php ) page.

So I can’t delete a view or uninstall a module now.

Does anyone know what may cause this issue?

Thanks in advance.

Drupal version: 


Source: https://www.drupal.org/taxonomy/term/4/feed