Another Fatal error message...

[Dinocanid]

So for class_initializer, it should be restored to its default (so just replace it with a fresh one from the mysidia zip file)
If possible, could you restore the files you changed back to default (you can backup the changed ones) and show me what those other errors were? Or you can just type them up if you remember. Like I mentioned above, even though it seem strange, you shouldn't have to edit those files to fix anything, so the problem is usually elsewhere.