What the **** is my Creality K1C doing?

I'm just discovering the world of 3D printing. I've already printed a few things pretty effortlessly, but now I'm stalling on printing a puzzle kit card. I've already managed to print a good 15 of them, but now my Creality K1C 3D printer (0.4mm stainless steel nozzle) can't do it (see pictures). I print each kitcard with a glow-in-the-dark SNAPMAKER PLA 1.75mm filament, with a nozzle temperature of 210°C (error also with 230°C), hotbed temperature 50-60 °C, speed 100% (error also with 50%). The template is a Bambou-Lab SDK, which I slice with CrealityPrint. I haven't actually changed anything in the settings before slicing. However, I had to replace the filament roll in between and got a firmware of the printer. And I just can't figure out what the error could be and I don't even know where to look anymore. Maybe I should replace the Nozzel once, since the glow-in-the-dark filament is supposed to be very abrasive? Now I hope that someone can help me.