Learnpress courses are locked

Hi there,

We are currently using Learnpress Version 4.1.4.1 and have a problem with the courses.

It worked the entire time, but now it has just stopped working and ALL courses all locked for the users.

We've manually added the users via:
1. Orders
2. Add User
3. Add Course
4. Complete the order

Is there anything that we could try to solve this issue? We also tried already to delete the “order” and create a “new order”.

Thank you for you support!