Okay, I finished fixing all of the bugs that popped up after migrating to the new server. There should be no more 404 errors with the message “[an error occurred while processing this directive]”.
Everything should be back to functioning as it was prior to the movement.
Also, just for fun, I’ve now put in Disqus for the commenting system because it seems to be cropping up everywhere and is convenient for me. Now no site accounts here or other crap is needed to comment.