My issue with FML

So, I've been playing in Lan for a few days with a modpack I created on Twitch
Today I decided to create a fml server: I imported the world folder, the config folder and of course the mods folder.
But even so I have the __exact__ mod folder and so on, the server doesn't recognise the mods (which again did in Single Player - Lan)

«[21:50:32] [Server thread/ERROR] [OrbisLib]: WARNING: A mod data file (mutated_tree - d31ff5fc-3ac5-4101-b966-2bfc40b4b5ac:31dae1da-5d8a-4a6c-833d-0296367f5326:Player155) has a different identifier assigned after loading (Old identifier: 02afc608-3e90-4589-8fe6-ce03a0e68b0e:8e954611-5766-484a-8ca1-a17ad4861184:OscarPayn). This usually means the original identifier has a null UUID data id or the identifier itself is null. Please reimport this data into your project OUTSIDE of the development workspace and let it assign itself the correct metadata.
> [21:50:32][FINE/CustomNPCs][noppes.npcs.controllers.LinkedNpcController:42] Loading Linked Npcs
[21:50:32][FINE/CustomNPCs][noppes.npcs.controllers.LinkedNpcController:62] Done loading Linked Npcs
[21:50:32] [Server thread/INFO] [mcjtylib_ng]: Preparing all world data
[21:50:32] [Server thread/INFO] [minecraft/DedicatedServer]: Preparing level "Copy of INFINITUS-"
[21:50:32] [Server thread/ERROR] [FML.ModTracker]: This world was saved with mod ctm which appears to be missing, things may not work well
[21:50:32] [Server thread/ERROR] [FML.ModTracker]: This world was saved with mod ptrmodellib which appears to be missing, things may not work well
[21:50:32] [Server thread/ERROR] [FML.ModTracker]: This world was saved with mod jeresources which appears to be missing, things may not work well
[21:50:32] [Server thread/ERROR] [FML.ModTracker]: This world was saved with mod moreoverlays which appears to be missing, things may not work well
[21:50:32] [Server thread/ERROR] [FML.ModTracker]: This world was saved with mod thaumicjei which appears to be missing, things may not work well
[21:50:32] [Server thread/ERROR] [FML.ModTracker]: This world was saved with mod wailaharvestability which appears to be missing, things may not work well»