IIS 5 & IIS 6
Event code 3005 Id 1309
Re: Event code 3005 Id 1309
Jul 20, 2018 10:31 PM|lextm|LINK
Check your source code to see which version of Microsoft.Owin.dll is used, and then log on to the machine to verify the assembly there again (GAC/bin folder). Sounds like that assembly on the server side has been replaced with an invalid one.