Hi,
thanks for your post, and sorry for the trouble.
As these are the English-language forums, I’ll reply in English. I hope that’s ok.
The reason for this is probably a glitch with the access capabilities, so that we’ll have to restore them manually.
For that, please surf to https://example.com/wp-admin/options.php (with your domain, of course), and scroll down to the “tablepress_options” option. In that textfield, you should see a number 32 (I think) as the “plugin_options_db_version”. Change that number to 0 (be very careful to not break the surrounding quotation marks etc.), and click the “Save” button at the bottom of the page.
That should reset the capabilities, so that the admin menu entry should appear again.
Regards,
Tobias