(Wasn't sure if you were looking for opinions on the covers or just choosing between covers but oh well)
Vibes aside, the text and placement is a bit weird, in my opinion.
The first one has big and blocky font with a pixelated "error" across it. It looks a bit confusing to me and visually feels sort of complicated(?). I'm not really sure how to explain this in English, but it's not horrible, just feels a little off.
The second one, I think the title is not bad, but you should keep some consistency and maybe have the "reincarnated as an error holder" with the same font as Re: Wind. I'm also not sure what the text in the bottom left corner says, but it doesn't really fit color-wise and the font is too hard to read.
Also, the boy and the background don't really work together well, the bg with the rocks is very clean and almost realistic, but the boy has more messier lines. The cat is actually a bit softer and looks a little better with the boy than the rocks do. Some contrast would also be nice since the boy and bg are both a little dark.
I think making different iterations of covers and moving the boy and title around to see what looks nice would be helpful because the title is a little too far left. A. good cover can really help your numbers.