On book not work item flags

Hey, I am still looking forward to a reply from you, I hope I can resolve your problem!

If you happen to ever come upon this post, feel free to re-open this and provide the information I asked for above so we can get your situation resolved.

I need more information than that,
Such as
1.) any errors in console?
2.) what item flags are you using?
3.) Please post your config,en-lang, and items.yml in separate pastebin.com and send me the links.
4.) what version of craftbukkit / spigot are you using?