A couple of weeks ago my profile picture became suddenly blurry and only displayed the upper left corner. I tried re-uploading and cropping several times, with different ext of files and sizes, but nothing changes. What's happening? How do I fix it?
I think this happened to a lot of us. We see our profile picture blurry, but other people don't. For example, I can see yours clearly and I can see mine clearly as well if I log out of my account or I enter my profile from a different browser where I'm not logged in. No idea what happened, but I've seen other people complain too, it's probably something many users are experiencing. So it's the website, not you, don't worry. I don't think it's fixable on our part, but maybe I'm wrong and someone else will provide more info.
How do people in this site make searchs by tags, please? I don't know. Only thing I see in the search bar is name of the manga or author. And then a genre unfold, but not tags!
Like, if I want to search a "demon" tag or whatever, how do I filter that?
https://www.mangago.zone/tag/(tag name)/
tag name without brackets
or just click a tag in one of the mangas and a tag search bar come and u can search there directly

Manga where there was this little kid (or young boy?) in love with an older girl, but he was determined and swore to marry her and make her fall in love with him when they grow up.
I don't remember if he succeeded or not.
Is it this?
https://www.mangago.zone/read-manga/sensei_can_t_teach_me_about_love/
No, sorry. The story was shorter than that. Besides they are already in a relationship, there's no expectation nor developing it there. Also, the guy is already a grown up teenager... The story I'm looking for started on the cute side because like I said, it was about a little kid confesing to his crush.