This issue could be caused by a misconfiguration of the permissions on the server. Make sure that the server has the correct permissions to access the necessary files and directories. Additionally, check that the server has the necessary PHP extensions installed.
If the issue persists, try clearing the cache by running the following command:
php artisan cache:clear
If none of these solutions work, it may be helpful to check the server logs for any error messages that could provide more information about the issue.