Hi @beuvelet
Thank you for taking the time to leave a review. I’m sorry to hear that you are experiencing issues with your site. This does sound like an issue that is specific to your site and I haven’t been able to replicate this issue or heard of other cases like this from our support team.
You are correct in saying that Paid Memberships Pro does not have any limitation to the number of membership levels you may create.
We would be more than happy to help troubleshoot this issue for you. I did not see any ticket created in www.ads-software.com for your account, if you would like to investigate this further please do not hesitate to open a new ticket here – https://www.ads-software.com/support/plugin/paid-memberships-pro/#new-topic-0
Note: I did use Google Translate to translate your review into English. I do apologize if I have missed any information here.