I got this message trying to test my mission thus far

"Internal server error attempting to play map"

Is is it me or something I have to be patient on?

No, this is a known glitch in the foundry itself. So far the only fix is to delete your test character and create a new one. Note this does not lose your projects, just the 'toon' you use to interact with it.

Thank you that fixed the problem

Not a problem, just to warn you it will happen again I learned it best not to super customize your Foundry char because 1)it doesnt really matter and 2)you WILL blow it away again

I didn't have to delete my character, I just logged out of STO a few times and it fixed itself.