When I try to open FontLab VI  it crashes and I get to see a crash report text message:


This is the result of Monterey 12.4 update which removed Python 2.7. The solution is to download and install Python 2.7.18 using this original installer:

This is a safe operation and it should solve the issue.

We also recommend to upgrade FontLab IV to version 8 which is fully compatible with macOS Monterey.