You should be able to play the game on android with the JOIPlay app if you download the Windows version. As for art, I would also like to have more. I currently have two artists doing commissions for the game constantly, so there's more every update, but the game was being made for several years before I was able to commission any art at all, so there's still a lot without art still.
83 days ago(+1)
Thank you for paying artists and not resorting to using AI generated slop like so many of these games are doing nowadays!
In the JOIPlay app, open up the menu with the button in the top right corner, then go to settings. Once there, open up "HTML Settings", and see if "Allow External Modules" is on. When I turn that option on, I get the exact same error you are reporting, so if it's on for you try turning it off. (Ensure you click the save button in the bottom right after changing the setting or it will revert on you.) If that doesn't work also check the NWJSAPI setting and ensure that is on. If neither helps let me know and I can see if there's any other potential solution.