Fatally Missing Registry Entries

Trying to run an rlcraft server on my computer and get the message "Fatally Missing Registry Entries" when I try to join. 

[02:54:35] [Server thread/INFO] [minecraft/MinecraftServer]: Preparing spawn area: 81%
[02:54:36] [Server thread/INFO] [minecraft/DedicatedServer]: Done (3.086s)! For help, type "help" or "?"
[02:54:36] [Server thread/INFO] [globalgamerules]: Saving gamerules of dimension -1 (world) to config
[02:54:36] [Server thread/INFO] [FML]: Unloading dimension -1
[02:54:36] [Server thread/INFO] [globalgamerules]: Saving gamerules of dimension 1 (world) to config
[02:54:36] [Server thread/INFO] [FML]: Unloading dimension 1
[02:54:36] [Server thread/INFO] [globalgamerules]: Saving gamerules of dimension 111 (world) to config
[02:54:36] [Server thread/INFO] [FML]: Unloading dimension 111
[02:55:21] [Server thread/INFO] [antiqueatlas]: Saving local markers data to NBT
[02:55:49] [User Authenticator #1/INFO] [minecraft/NetHandlerLoginServer]: UUID of player DrigglyEast is cf53edaf-7b26-428e-8075-732115bacf48
[02:55:49] [Netty Server IO #2/INFO] [FML]: Client protocol version 2
[02:55:49] [Netty Server IO #2/INFO] [FML]: Client attempting to join with 125 mods : [email protected],[email protected],levelup2@${version},[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected] - MC 1.12.2,[email protected],[email protected]_for_1.12.2,[email protected],[email protected]_for_1.12.2,[email protected],[email protected],[email protected],[email protected],spartanweaponry@beta 1.3.8,[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected]+dev.151.822d839,[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected]_for_1.12,[email protected],[email protected],[email protected]
[02:55:49] [Server thread/INFO] [minecraft/NetHandlerPlayServer]: DrigglyEast lost connection: Disconnected
[02:55:49] [Server thread/INFO] [minecraft/DedicatedServer]: DrigglyEast left the game
[02:56:47] [User Authenticator #2/INFO] [minecraft/NetHandlerLoginServer]: UUID of player DrigglyEast is cf53edaf-7b26-428e-8075-732115bacf48
[02:56:47] [Netty Server IO #5/INFO] [FML]: Client protocol version 2
[02:56:47] [Netty Server IO #5/INFO] [FML]: Client attempting to join with 125 mods : [email protected],[email protected],levelup2@${version},[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected] - MC 1.12.2,[email protected],[email protected]_for_1.12.2,[email protected],[email protected]_for_1.12.2,[email protected],[email protected],[email protected],[email protected],spartanweaponry@beta 1.3.8,[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected]+dev.151.822d839,[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected]_for_1.12,[email protected],[email protected],[email protected]
[02:56:47] [Server thread/INFO] [minecraft/NetHandlerPlayServer]: DrigglyEast lost connection: Disconnected
[02:56:47] [Server thread/INFO] [minecraft/DedicatedServer]: DrigglyEast left the game
[02:59:20] [User Authenticator #3/INFO] [minecraft/NetHandlerLoginServer]: UUID of player DrigglyEast is cf53edaf-7b26-428e-8075-732115bacf48
[02:59:20] [Netty Server IO #8/INFO] [FML]: Client protocol version 2
[02:59:20] [Netty Server IO #8/INFO] [FML]: Client attempting to join with 125 mods : [email protected],[email protected],levelup2@${version},[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected] - MC 1.12.2,[email protected],[email protected]_for_1.12.2,[email protected],[email protected]_for_1.12.2,[email protected],[email protected],[email protected],[email protected],spartanweaponry@beta 1.3.8,[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected]+dev.151.822d839,[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected]_for_1.12,[email protected],[email protected],[email protected]
[02:59:20] [Server thread/INFO] [minecraft/NetHandlerPlayServer]: DrigglyEast lost connection: Disconnected
[02:59:20] [Server thread/INFO] [minecraft/DedicatedServer]: DrigglyEast left the game