My fucking png’s won’t work

I don’t know what I’m doing wrong, I have been trying for days now for my png images to work on my Jimdo website but it’s not working at all. I even changed my iPhone settings nothings working and I’m starting to get infuckingfriated

I am now aware it’s gotta be 24 bit png, but Idk which websites actually do that like remove.bg needs money to do that