You will not be granted access to the event space.  Everyone present at FWA 2022 must provide proof of vaccination.
The provider who vaccinated you should be able to get you another vaccination record.
If you were vaccinated in Georgia, you may be able to get a copy of your vaccination record from the Georgia Immunization Registry by going to this site and submitting the form “Request for State of Georgia Official Immunization Record”
Georgia Immunization Registry (GRITS) | Georgia Department of Public Health