I can't use clonezilla to clone my virtual machine

What's up
i am beginner whith proxmox, i have a clonezilla image, and when i boot with clonezilla, first show the menu correctly but after the screen looks like a old tv and i wait a minuts but nothing happend. any idea? i try with all the options in the clonezilla menu safe mode, other resolutions etc.

Thanks.