Problem with my wp-admin

Hi, when you link into this https://www.tuscanyvillages.com/wp-admin it shows errors. Ive re-uploaded wejnswpwhitespacefix.php via ftp on my hosting, but the other file I cannot find.

I did export and import blogs from one wp to this site and it was around the time afterwards that ive been receiving problems. Each time I try and update a post that imported it shows as draft and will not publish, even when I press publish and it states its published, it then reverts back to draft.

I’m able to get into the admin to change things if that’s all I need todo.

Thanks alot, Susan