Hello developers, I saw that this problem happened to several users and it even continues to happen to this day, I am going to leave you the solution to help the users and as a clue so that the developers can solve it, I hope it will help you.
The error as mentioned above is that the basic pages load, but the content within them does not, for example, they load the tournament page but not the tournaments individually. This can happen with any page, normally it is because we change the pages that are already predetermined by CyberPress (those that the same plugin creates), in any case the solution is to create the content in the pages that does not work (for example, if not Tournaments work, we create one) and then deactivate the plugin and uninstall it, then download the plugin separately (not from the wordpress repository, but from the official CyberPress page or the wordpress repository but not from our wordpress) and install it again and solved. hope developers fix it. sorry for my English.