You should repair the FIRMWARE files with FORScan. The is different than the Sync application software. If you don’t feel comfortable doing this, then replace the APIM.
Updating Module Firmware with FORScan, Program Guide Revised 09/2021 - Ford / Information - CyanLabs Official Community
Updating Sync 3 APIM Firmware Using FORScan 2.4.x Release - Ford / Guides - CyanLabs Official Community