You can't register items with the ore dictionary if they haven't been registered with the game yet. PreInit is too early.

Forge: 1.12.2-14.23.5.2847
Mod(s): StorageDrawers-1.12.2-5.4.1 and StorageDrawersUnlimited-1.12.2-1.3.0
Other: about 140 more mods working well together.

[12:21:49] [Server thread/WARN] [FML]: ****************************************
[12:21:49] [Server thread/WARN] [FML]: * Invalid registration attempt for an Ore Dictionary item with name drawerBasic has occurred. The registration has been denied to prevent crashes. The mod responsible for the registration needs to correct this.
[12:21:49] [Server thread/WARN] [FML]: * at net.minecraftforge.oredict.OreDictionary.registerOreImpl(OreDictionary.java:665)
[12:21:49] [Server thread/WARN] [FML]: * at net.minecraftforge.oredict.OreDictionary.registerOre(OreDictionary.java:651)
[12:21:49] [Server thread/WARN] [FML]: * at com.raptor.sdu.event.RegistryEvents.onBlockRegistryEvent(RegistryEvents.java:57)
[12:21:49] [Server thread/WARN] [FML]: * at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_821_RegistryEvents_onBlockRegistryEvent_Register.invoke(.dynamic)
[12:21:49] [Server thread/WARN] [FML]: * at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:90)
[12:21:49] [Server thread/WARN] [FML]: * at net.minecraftforge.fml.common.eventhandler.EventBus$1.invoke(EventBus.java:144)...
[12:21:49] [Server thread/WARN] [FML]: ****************************************
[12:21:49] [Server thread/WARN] [FML]: ****************************************
[12:21:49] [Server thread/WARN] [FML]: * Invalid registration attempt for an Ore Dictionary item with name drawerTrim has occurred. The registration has been denied to prevent crashes. The mod responsible for the registration needs to correct this.
[12:21:49] [Server thread/WARN] [FML]: * at net.minecraftforge.oredict.OreDictionary.registerOreImpl(OreDictionary.java:665)
[12:21:49] [Server thread/WARN] [FML]: * at net.minecraftforge.oredict.OreDictionary.registerOre(OreDictionary.java:651)
[12:21:49] [Server thread/WARN] [FML]: * at com.raptor.sdu.event.RegistryEvents.onBlockRegistryEvent(RegistryEvents.java:59)
[12:21:49] [Server thread/WARN] [FML]: * at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_821_RegistryEvents_onBlockRegistryEvent_Register.invoke(.dynamic)
[12:21:49] [Server thread/WARN] [FML]: * at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:90)
[12:21:49] [Server thread/WARN] [FML]: * at net.minecraftforge.fml.common.eventhandler.EventBus$1.invoke(EventBus.java:144)...
[12:21:49] [Server thread/WARN] [FML]: ****************************************

Full log: https://privatebin.net/?e96dc1d90cee35f2#6uk3znj8Z2SU3hN5NRUqvK3Wx6vyF3QMWSmrbe3z7Eic