Can’t access the admin menu anymore

Hello,

At a couple of sites, I just realize that the Tablepress menu has disappeared from the my Dashboard menu and I can’t access my tables for editing anymore, although they still display correctly in pages.

I tried to manually use the URL: /wp-admin/admin.php?page=tablepress
but I get this message, although I’m the only admin there and everything seems to be working fine:
“Sorry, you are not allowed to access this page.”

I don’t know since when this happened as I haven’t edited those table since many years.

Thnaks.