Hi @serahben,

Sorry to hear of the problem you are having.

On your new server please make sure you have set proper file permissions to WordPress files as described on the following pages.

https://codex.wordpress.org/Changing_File_Permissions

https://www.smashingmagazine.com/2014/05/proper-wordpress-filesystem-permissions-ownerships/

http://www.wpbeginner.com/beginners-guide/how-to-fix-file-and-folder-permissions-error-in-wordpress/

Could you please share me your site URL where it’s happening so that i can troubleshoot it?

Best regards,
Shufflehound team