Using Function Keys on Touch Bar crashes BTT, even though TouchBar Support is disabled

Describe the bug
Using Function Keys on Touch Bar crashes BTT, even though TouchBar Support is disabled. Crash Logs: https://www.dropbox.com/s/zeo9t14zs0e9g0r/BetterTouchTool%20CrashLogs.zip?dl=0

Affected input device (e.g. MacBook Trackpad, Magic Mouse/Trackpad, Touch Bar, etc.):
Touch Bar

Device information:

  • Type of Mac: MacBook 16" 2019
  • macOS version: 10.15.4
  • BetterTouchTool version: 1554