Obox Dynamo Theme – Blurry Logo!

Hi all, I don’t have any knowledge on HTML/Wordpress whatsoever, but I managed to finish my website. The only thing that I can’t get right no matter what I try, is getting my logo to be sharp and crisp! I have no idea what I can do about this. I’ve tried uploading it in different sizes, resolutions, file types, etc. I would very much appreciate it if someone could help me with this.

This is my website.

Thank you all so much for your time! Have a great day ?? !