Getting nonstop unknown submission and uknown registration errors


About a month or two ago I was getting a very good VPM @ 35 and then all of a sudden my VPM dropped to 2-3 and I didn’t make any changes to cause it to happen.  When I check the log I am seeing nonstop unknown submission status and unknown verification status.  I am using private backconnect rotating proxies with a linklist from PSR.  I’ve been using GSA for many years and my setup is very good as well as my knowledge of the software.  I have tried resetting everything, new emails new content in campaigns and played around with the settings for past few weeks to see if something would fix it yet I am still experiencing these errors and they won’t go away no matter what I try.  @Sven can you see what is causing this and maybe provide me with a solution?