are you on phone or on pc? because when i tried playing on the phone i couldnt type a name as well. on pc it works perfectly fine.
hiii. Yes, it seems like virtual keyboards on phones/touch screens don't seem to pop up (so sorry about that!). It'll def be fixed in the full version!! In the meantime, if you have access to a physical keyboard (like those wireless/Bluetooth ones),you could try that and the game will work for youuu.