This is not necessarily the right place to post this question.
But I'll try my best to answer it.
There is no way to fix
Burynai Legion faction. Welcome to everquest. There are factions that you can lower on p99 that you will never be able to raise again. Most people don't care. I do so I suggest if you do care. Do research on the mobs you're planning to kill. This means you could potentially make quests, items, etc unavailable to your character because you killed a few certain mobs. This means you should also be aware of what your parties intentions are. Make it clear you do not want to kill certain mobs and that if they cant stop themselves from killing those mobs you should find another group.