[Sponge]: A custom DataBuilder is not extending AbstractDataBuilder!

[ziceptor]

http://pastebin.com/zKMzvweZ

forge-1.11-13.19.0.2178-universal.jar
spongeforge-1.11-2178-6.0.0-BETA-1997.jar
CommandSigns-API-6.0.0-1.3.1.jar

[EvilCh33z]

"A custom DataBuilder is not extending AbstractDataBuilder! It is recommended that the custom data builder does extend it to gain automated content versioning updates and maintain simplicity. The offending builder's class is: class io.github.hsyyid.commandsigns.data.users.UsersDataBuilder"

spongevanilla 1.11.2 (243)
commandsigns API6 (1.3.1