After upgrading to the PRO version I can not edit my settings anymore, because it keeps giving me a “sorry, you are not allowed to access this page” error.

Any idea what is causing this? I disabled all plugins, except TOP ToC and still got the same message.

If I “deactivate” my key, it returns back to normal and I can access the settings, but not the PRO features (because key is deactivated).

Sorry for the spam, but I can not seem to edit my posts.

As soon as I activate my PRO key it says its valid, and activates it. However, it removes the TOP ToC item in the left menu on the admin panel of WordPress.

If I go to plugins > settings it gives me the earlier mentioned error.

So, there seems to be something wrong with the activation, I guess?

Hello there,
We are glad you are using TOP Table of Contents Pro. It is a pleasure to have you as a customer.

The problem you are experiencing is not actually a problem. When you activate the pro plugin, the customizer option is available on the customizer page.
Appearance>> Customize>> Top Table of Contents

Here is a video that you can check out.
https://youtu.be/6yDPvyD1xDg

It is our pleasure to assist you. Feel free to contact us if you encounter any other problems.

Thanks
Shamiul Bishal

Hello
Since we have resolved your issue, we are closing the ticket.
If you encounter any other problems, please do not hesitate to open a new ticket.
Regards
Shamiul Bishal