Trying to update to big sur but installer gives an error, using clover

I am trying to update from catalina to big sur, but i get an error (look at picture)

My specs are

Cpu:intel core i5-4590

Ram: 6GB 1333MHZ Ram

GPU: GT 710 2GB Gddr5

https://preview.redd.it/ifcau1w6asz71.png?width=1468&format=png&auto=webp&s=48c0c607de0c25149b8de414f4f44aaeae535cca