Hey chessters can you help me out!

I tried putting in every single possible space i could. I did a1-h8 and it kept saying illegal move or invalid notation! I don't know anything about chess, and I tried like three chess answer makers, and it kept saying my answer was invalid. Can u help me out? Thank you!

https://preview.redd.it/cywi4t72k1kc1.png?width=404&format=png&auto=webp&s=2f4ab77dcc9bd8688fe2708c3cf55d45751cb4d4