Not sure how to format this but using technic mod pack OfficialDracoCraft
and was on a server made for that pack, and I applied to my armor (made of tartarite Metallurgy) Moss and Invisible Ink, and the server crashed from what a friend told me as well as my game. Now whenever I join the server crashes and my game crashes.

Please use the provided template in the future.

Does the game crash or does it freeze? There's an important difference. If it crashes, then please provide the crash log.

It freezes, and I can't do anything no matter how much I wait. And when I check the crash logs it doesn't show up. As well as the server crashes

Then it's likely a duplicate of #166
It's a Metallurgy 4 issue.