[backwards]

You most likely just have an old versions of the srcds instance open still in the background somewhere that is already bound to the port you are trying to start the new server with. Your script to restart the server might be too fast and trys to start the second server before the first one exits. Also 27006 is usually a client port, 27015 is normally where ports start for srcds instances.

Your second issue I don't think matters as long as the `meta` command works when you type it in console. I'm pretty sure metamod trys to load both a 64bit and 32bit version and one always fails while the other succeeds