Version 6 won't load

Version 6.2 won’t load after upgrading to Sierra 10.13.6

Version 10.13.x would be High Sierra( 09/2017) and RW6.2 (06/2015) or any RW6.x to my knowledge is not compatible.
The release notes show version, 7.5.1 and up should be fully compatible with High Sierra.

Thanks, guess I’ll have to upgrade. Hope everything moves over.