The 3 buttons to buy items that are "For Sale Today" towards inventory don't seem to be working when playing the browser-game on touchscreen/mobile (through https://www.crazygames.com/game/tower-swap using Firefox 95.2.0 Build #2015851753) . The game returns to the clan screen instead of buying items to inventory. Buying an item when the game just starts does seem to work fine.

Those same buttons do seem to work fine for buying items to inventory when playing the browser-game on laptop (and also seem to be working fine when using a laptop with touchscreen).

Some additional info that might be relevant; I use the username "Joop" when logging in to the game.

Thanks for the report! I will fix this in the next update. I if you have a tall screen like the Pixel2 XL it thinks you are trying to do a "tap outside of the popup to close the popup" action.

The tall screen indeed seems to be a factor here. When switching the game/phone to landscape mode, then the buttons also work as expected.