You mention 'solo' for the project. Do you mean the 'Solo Edition'?
Judging by the name of the label, I would guess it is from version 22 of either Solo or 'regular' archicad. You either need migration libraries if you are using a newer version of archicad or maybe there could be a difference between AC22 solo and 'plain' AC22.
Yes, you were correct. For some reason it was not in the ACAD 22 migration libraries that were recently installed on the computer. so we had to hunt for the detail in another version of the migration libraries and update that machine.
Dave Brach/architect AC26 MBP OS Ventura AMD Radeon Pro 5300M 4 GB Intel UHD Graphics 630 1536 MB