After a change of hosting, wordpress administrator stops working

Theme My Login generates me the following message:

“Internal Server Error
The server encountered an internal error or misconfiguration and was unable to complete your request.”

this happens after moving my site from one server to another.

if you change the name to the “theme-my-login” folder in the “plugins” folder the error disappears and can enter the administrator wordpress, if I go back and I’ll leave the same name is resubmitted the mistake and blocks the wordpress manager

Thank you very much for your help.

https://wordpress.org/plugins/theme-my-login/