Paddy

the same problem for me. Does anyone has found a solution?
thanks.

I have the same problem. did you find a solution?

can you try to delete the all widget or the widget folder from the server?
I am new to wordpress as well and had a similar problem with a plugin which blocked my site as well.
I went on the server with FTP and delete the all plugin folder and then worked again.

Hope this helps!

Solved by deleting the plugin folder from the server…