[Solved] Can not delete custom tab

Hello!

I've created new tab in tab manager but in the field "key" i wrote in russian and now i can not delete or edit this tab.

(link for deletion:

......./admin-post.php?action=wpfucfDeleteTab&keyEMPTY&_wpnonce=a81ce699c3

......./page=wpforo-user-custom-fields&tab=member_tabs&action=edit&type=html&key=EMPTY

)