Bukkit

So I started my server and we have builders in 24 by 7 and suddenly my water and lava stopped flowing .

here is my list of plugins :

advancedban, alerts, animatedframes, armorstandtools, bowspleef, buildersutilities, buildmode, changepassword, chat, chatcolor2, chatex, citizens, clear, clearlag, commandnpc, commandspy, coreprotect, crackshot, crazyauctions, crazyenchantments, deluxehub, discordsrv, doublejump, essentials, essentialsspawn, essentialsxmpp, eview, fastasyncvoxelsniper, fastasyncworldedit, gadgetsmenu, gobrush, grant, griefprevention, guiperms, holograms, idisguise, infiniteannouncements, launcher, lobbyapi, luckperms, mapmanager, nametagedit, nocheatplus, pac, parkour, personnel, ping, placeholderapi, playerheads, playerpush, pluginconstructorapi, pluginlistgui, promotionessentials, rankgrantplus, report, resetpassword, simplefreeze, simplerename, skinsrestorer, sqlitelib, staffchat, stafflist, staffplus, statz, strip, sudo, supervanish, survivalplus, tab, tazer, ticket, tigerreports, vanish, vault, vault, viaversion, voxelsniper, watchdog, worldborder, worldedit, worldguard, xrat

someone help pls