How could they lost literally game-selling track?

In the menu where you can choose which level or workshop content to play, there's a box that pops up over everything and I'm sure it's supposed to be a notification of something-- however, there's nothing in it for me and every time I click to get rid of it, it'll just send me back a menu to the starting menu. I'm running this on a Steamdeck and I'm just simply wanting to fix this minor issue so I can play without that popup....

Hello. First, you might've noticed that more people have the 'Lol, Really' achievement than other achievements, for some reason, i got it, without getting the others. I tried getting the rest of the achievements before, but they weren't properly recorded, for example, the horse one barely records kills. I suspect the game registers them, that it has its own 'goals management', but somehow the steamworks integration went to ♥♥♥♥. Thank you for the game, devs. Pretty nice! <3...

How I can get hellhound? Kill 20 people in row. I make this and I still don't get it

My game was working fine yesterday morning, then the screen went black. I tried restarting the game, but I still had a black screen with no audio. I updated my drivers, I restored my computer, I emptied the download cache, verified the files, uninstalled the game and steam, run the game as an administrator, etc. Nothing's working. My other games are fine, it's just this one. :''( Any suggestions?...