the language, you can just select on the upper right hand tab where it says, select language.
This is an extra step which is completely unnecessary since majority of the gamblers prefer English as the primary language in both FIAT and crypto gambling sites. This is why op needs to rectify this asap.
Also, you face a ton of competition given that established entities such as Cryptogames also support Doge and have way bigger selection of games to choose from, and a lower house edge. Definitely need to consider that for sure.
Just noticed the 3% house edge here which is not competitive at all when rival sites offer similar games with way lower edge as you mentioned. This is a big con associated with this site.