Error message 0 Class EA not found after uninstall of EasyArticles

I attempted to uninstall EasyArticles and now have an error message that is blocking access to the admin area and front end of the website (see image).

I noticed this thread after the uninstall and as I thought i needed to remove the component before the other EA items, this may have caused the problem as it seems all items should be removed at once.

If you could help to solve the problem please.