Macbook is not charging with plug in status but in settings, It shows charging

I thought my Macbook is not working anymore (because I thought it drowned) but I dried and 3months after now

I charged my Macbook and It was working but when I try again the charging is not working

(I think the watt is weak in this house) when I see the home screen It shows just plug in status but when I go to the battery setting it shows charging and now It's 6% and The battery doesn't run down