Hello estefania and welcome to the ArtRage forums 
I’ve never used a Gaomon screen tablet, so have no idea how compatible there drivers an are with AR6.
If you have not done so already I would suggest contacting Ambient Design directly about this.
You can contact them on their support page here: https://www.artrage.com/get-support/
Or by email here: [email protected]
Hope you can get it sorted soon!
Maker Of Replica Macoys
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ArtRage 6.1.1 ~ 15" Macbook Pro ~ macOS 10.15.7 ~ 4 Core i7 3.1GHz CPU ~ 16GB RAM ~ Wacom Intuos4 M