@Jason said:

@PSX_Defector said:

A 500 error usually means that your application pool isn't setup properly.

Got an extended error output?

Nope. Found out the guys webconfig was all messed up. I fixed it. There a lot of stuff off in how this guy was doing things.

That would do it. The config file is what controls the pool. If it's misconfigured, it's gonna throw 500 errors.

When in doubt, always turn on the whole error message:

https://support.microsoft.com/en-us/kb/294807