Hi Saqib,

Firstly, I would like to sincerely apologize for the delayed response as we have been experiencing an unusually high number of tickets. I am sorry that it has taken longer than usual to respond to your concern and your patience is highly appreciated.

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I am not able to reproduce the issue, on my Site i am able to duplicate Simple Tables, or any other table type

Issues like this usually occur when there is a conflict either with the theme currently active on your website, or another plugin you have installed.

Can you please change the theme and see if the issue is resolved?

 If not, then please deactivate all other plugins except for our plugin, refresh the page where the issue is, and see if it is resolved (it should be).

 If it is, then start activating other plugins one by one, and after each activation refresh the page to see if the issue occurred. 

Once it does reoccur, you will have found the plugin causing the issue.

Let me know if you isolated a conflict with these steps;'

And if we can also take a remote look at the WP-Admin after that.

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.