If the certificate went you'd get a different error. I think that's a configuration change in the back end. I remember having the same problem with the work site where http and https had slightly different configurations and it broke somehow. Its so long ago - I don't understand how I fixed it
Oh sweet meteor of death
Fall upon us.
Deliver us in fire
To Peace everlasting.
Fall upon us.
Deliver us in fire
To Peace everlasting.