Try to disable Brick_AdminMusic
Clearly, the console.log makes it look like loading Bot_Zombie is the problem. This obviously is not the case because it's a default add-on.
I saw someone with a similar incident not too long ago. The game would just suddenly crash after loading some add-on.
He kept giving us updated console.log files, each one cashing after loading a different add-on. We just kept telling him to delete the add-on that it looked like was causing the crash.
Eventually, though, we hit this same road block: it crashed after loading a default add-on.
We then suggested that he just backup and clear his add-on folder, which fixed the crash issue.
To sum it up: Some add-on you have is causing the crash, but for some reason, the console.log isn't showing it.
I suggest you move (NOT copy) all of your add-ons to a backup folder somewhere else on your computer and see if that fixes the problem.
If it does, then you can slowly add a few add-ons at a time back into your add-ons folder until the problem returns. You can then determine which add-ons is causing the crash.