TablePress Not Displaying In Admin

Hi,

I’m having this problem. (https://www.ads-software.com/support/topic/tablepress-not-displaying-in-admin/)

and
I did what you suggested here. (https://www.ads-software.com/support/topic/tablepress-gone-from-wp-admin/#post-8884857)

However, the Web site “Save” after saying 403 error gives.

And the change is not saved. “{” plugin_options_db_version “: 38,” remains.

Can you help me?

The page I need help with: [log in to see the link]