I am uploading my logo as a PNG, still give me an error, how can I fix it?

[IraysaG]

I have saved my logo as a PNG, when I try to upload, it gives me the error message below:

Profile image should have content type image/jpeg, image/pjpeg, image/png, image/x-png, image/gif

How can I fix it?

[ModernMounters]

Just put in in a png to jpg converter online