We performed a fresh install of Tridion Docs 14 SP2, restored our database and are running into an odd issue after logging into Content Manger. Once logged in, when we click on content manager on the left hand pane, we get a 500 and the following error in the infoshareauthor log, has anyone seen this issue. TIA 

0004484 ERR PRS Deva   RAISED IN: PRS.Deva.LogObject:\0\ISAuthor.Deva.GetCurrentUserName
00006224 ERR PRS Deva   Time:11:47:15.698 TridkVersion:140.13.0.5429 Error: Tridion Docs Content Manager 14.0.5429 Error: Class not registered
00006224 ERR PRS Deva   START PARAMETER LIST
00006224 ERR PRS Deva   ====================
00006224 ERR PRS Deva   reason: Class not registered
00006224 ERR PRS Deva   ====================
00006224 ERR PRS Deva   END PARAMETER LIST
00006224 ERR PRS Deva   RAISED IN: PRS.Deva.LogObject:\0\ISAuthor.Deva.GetCurrentUserName