Hello! I have the same issue, in version 5.0 my custom login page works fine but in 5.1 not 🙁
The problem was Apache ModSecurity rules #340464 and #340465, my host provider disabled them, an now WP-DownloadManager works fine
Hi, It seems that is a problem with Apache ModSecurity rules #340464 and #340465. I asked to my hosting provider to disable that, I’m waiting for their response to try again.
