Since GenCore is not for commercial uses, it doesn't have a team of supporters or paid technicians to support you directly in a formal way, instead, you can use the forums or ask questions on the IRC channels (More info below).

IRC Channels:

#gencore - General GenCore channel
#gencore-support - If you need support, use this channel
#gencore-bugs - Report bugs to me or any of the official developers directly here
#gencore-dev - GenCore Developers' channel, only for developers and contributors
#gencore-op - Report any operator who abused you in any of our IRC Channels