I believe that there is an anvil glitch. This occurs in the survival, factions, and skyblock servers. Whenever I try to rename an item or combine two to fix, I lose my levels and the items appear as they did before. Not too sure if it is a temporary issue or long-term. Please comment below if you have had similar issues.
@ItsHarry do you know when 1.8 will be fully updated onto the server? I am sorry for asking it on here because I don't want to make a thread of it as a lot of people who answers the question are not sure at all. I remember it was about the bukkit stuff that needs to be updated first
Bukkit 1.8 doesn't work particularly well. I'm guessing they'd go with spigot. Anyway, back on topic. If you're using Minecraft 1.8, switch to 1.7. 1.8 uses a different anvil system. In 1.8, anvils cost less enchantment levels, whereas in 1.7, they cost a lot more. Due to this, if you are using 1.8, you will see it as 1 or 2 required levels when in reality you require 13 or 14.