I have upgraded the plugin again which is controlling all our custom plugins (among others shop & deposit) with the hope to enable enchanted books to be traded. Unfortunately. while the plugin now properly detects enchantments on books, it does not list the level of enchantment correctly yet. I contacted the author regarding this. Once we get the next version of the plugin, I hope this (last) bug will be fixed.
Nice to hear it works again, even if not a 100%
yay finally now i can find the books i want and sell all extras i get lol