To fix the Pauls code error: (Not caused by Mc My Admin at all) (Test this before putting on your server - I will not take the blame for breaking something)
1. Open you Server's JAR in the main folder of your server (The one with the op.txt and server.log)
2. Look for a folder called Paulscode (or something very similar to that)
3. Delete the folder named Paulscode
4. Save and recompile the Jar.
Explanation: This supposedly happens because the server trys to open the clients Sound Files, which the server doesn't need to open these files, as the server doesn't produce the sounds (Unless your server has a loud fan ). Removing this file didn't cause any others errors for me, and the server worked fine afterwards.
I would also like to say:
Mc My Admin does NOT work properly with Forge Servers
Explanation: (May not be 100% correct but its got the idea about it, I may have got the wrong end here, but this is from some searching for myself)
Mc My Admin can read the console of a normal vanilla as many of you know, but in the implementation of forge, the server adds extra "prefix's" like "[ForgeModLoader]" and it cant read the standard errors "[STDOUT]" for example. Mc My Admin cant read this and so for some reason cant read that the server has started and therefore you get the: "Server is getting ready to start" Because Mc My Admin cant work out if the server has started. It is a known bug/annoyance, which is currently not getting fixed as the Maker of Mc My Admin, seems to not want to work with Forge to fix the issue. Try it for yourslef: run a vanilla server (no forge) and see if your Log has any extra "prefix's"
However, your server will still 100% run but has some problems with allowing people to join, and you cant see the CPU and RAM usage. The scheduler also will not work as it thinks the server is still starting and therefore the Scheduler doesn't start. And whitelisting is slightly buggy. My advice is not to use it with Forge.
But you may say "it worked with "Unnamed Mod Pack"", this is due to the implementation of craftbukkit + forge and seems to have removed the errors caused by forge on a vanilla server. Not going into the details, it just worked for some and not for others
(This is not advertising it is just stating the point)