If you know who issued it, contact them and ask them for a copy of it because you never received it.
You need to find out if they had an incorrect address for you or if it actually did not belong to you in the first place even though it may have been issued in your SSN.
If you determine that you did not work for the issuer of the 1099-misc for 2019 and it should not be reported in your SSN and Name you might need to contact IRS to dispute it as not yours.
