modular power suits

[Darkmoon07]

so me and my bro were updating our modpack on our server and for us and we have 3 of our own mods in which were ftb lib and ftb utilities and ironchest and enderstorage all latest 1.12.2 version and we were updating the servers which we had to remove them and add them back but the odd things are is that our suits dont show up on us or us in our gui and plus i logged out in lava since i thought i was practically immune to which i died in and respawned and died from overheating over and over plus i tried water but no luck can anyone help me fix this