Similar problem here. Once activated I can’t gain access to the WP admin, it just continues to redirect me to my forum index page.
I have my forum installed on a subdomain from my WordPress site (WP site: https://chowchow.org/, phpBB Forum: https://forum.chowchow.org/). Both are on separate databases.
I logged out and back in, yet still going to the admin URL simply redirects to Forum index.
I can’t even deactivate or change the pluggin settings now, I have to rename the plugin folder name in order for it to become inactive. How can I get this to work right? What am I missing here?
Any help would be great as I really need to have a solution for integrating the two so I can begin to utilize the BuddyPress features with the existing forum members. I did pay a donation for the license.