Site showing suddenly Internal Server Error

Permalink
I have two website installed as sub folder. They have been live since a year.
Here are there URL:
exrx.net/concrete (c5 version is 5.7.5)
exrx.net/concrete5 (c5 version is 5.7.2)

Both suddenly stopped working and showing Internal Page Server.
But only Login page works.
http://exrx.net/concrete/login
http://exrx.net/concrete5/login...

What could be problem ? I haven't changed anything in core. Site was live since last night. But suddenly started showing error.

Please help me.

srjahir32
 
WebcentricLtd replied on at Permalink Reply
hello, if this suddenly just started happening without making any changes myself I'd contact the host straight away pointing out the error and asking if any changes had been made that could cause this.

I'd then look at the site error logs to see what info is in there and then try and fix or append any relevant details to the call with the host.