We have a fresh and new installation of SharePoint 2013.
There are about 300 site collections. Some developers have deployed several farm solutions. All the 300 site collections work without any problem except 4 site collections. When I try to navigate to that site collections first it take very long time and then I get the error message " Sorry, something went wrong An unexpected error has occurred". I have tried to log on with different userid, and used the highest privileges but always I got the same message.
I'll appriciate any help
Thanks!
//Ashraf