Hi, luquet.

When you say you can not register new tables, I suppose you are not able to create any kind of tables?

Can you see is there any error on the screen,

and also try to keep your browser developer console open when this happens, do you see any error there?

We can certainly take a remote look.

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Please provide me a temporary WP-admin (administrator) user for your site where this happens, so we could log in and take a look ‘from the inside’ as that’s the most efficient way to see and resolve the issue. 

We do not interfere with any data or anything else except for the plugin (in case that’s a production version of the site), and of course, we do not provide login data to third parties. 

You can write credentials here just check PRIVATE Reply so nobody can see them except us.

Hi, luquet.

I am delighted to hear that this has been resolved. Thank you for letting us know. Anything else that we could assist with, please don't hesitate to create new tickets.

Have a great day!