I got the same issue earlier, check with your employer as well as ur attorney regarding this case. Do you have the receipt number for I-140 case. I think USCIS received your application, may be they didn't enter your I-10 receipt information to the USCIS system. I got the same problem,Do you have the I-140 Receipt copy? if you have it send the I-140 receipt copy to your attorney and ask them like i have receipt number i could not find in the uscis site.they will send G-28 form or some other form to uscis, then only your receipt number will display in the system.
if you have any questions i can help you on this case, contact me at firstname.lastname@example.org
GoodLuck for your Case.