build error and legacy particles !!

i have a problem witch is having a black screen on android 12 devices after splash screen for builds with api 31, however for api 30 and below devices it works. and i have tested it on unity 2018 and 2017 and i get the same results, can you please fix this ?

and also please i would like to import unity 2017 legacy particles into unity 2019?

please if you can do that we can make a deal?