Thank you all for your help. The issue has been solved.

Hi, I'd contact site support

https://my.wealthyaffiliate.com/websites/support

I think.you need to contact site support.
Let them.sort this issue out
Hopefully soon this will be sorted for you
Let us know how you get on

Might be a plugin. Need to deactivate all of them and then activate them one by one until the message comes up again. If that’s not possible or you don’t feel comfortable doing that, contact support. They can fix the issue for you.

Tom
.

Hi - you need to contact Site Support by clicking on the Help tab at the top of the screen. It is probably related to the recent WordPress update.