What I mean is that you entered US recently, you may have no paper I-94. If so, you can get the electronic I-94 at this website:
https://i94.cbp.dhs.gov/I94/request.html;jsessionid=LSv9SyTWVj02MdfMWQJdgC620SkgxmYcLGf2vJTJJTGwbPzvTTyq!-1588311864
If you have the paper I-94, you just provide the copy of the I-94 for I-485 filing, not need to get the I-94 online.
https://i94.cbp.dhs.gov/I94/request.html;jsessionid=LSv9SyTWVj02MdfMWQJdgC620SkgxmYcLGf2vJTJJTGwbPzvTTyq!-1588311864
If you have the paper I-94, you just provide the copy of the I-94 for I-485 filing, not need to get the I-94 online.