When you were accepted onto the server, you were given a chance to prove that you were a positive member, despite previous Minecraft player history. Due to recent behavior, beyond what you've mentioned in your post, we unfortunately will have to stick with our decision to ban you. If you'd like more information regarding your ban, you are welcome to private message me. We wish you the best of luck in finding a server more suitable for you.
there won't be anything in the server log, the mod dev asked for your client log
its probably not a bug though, it is because the mod isn't on the server due bugs like duplicating redstone, enderpearls when the pack launched, might add in the future when the modpack updates