Musescore Version 3 constantly crushing ...

Hi:
I'm NOT sure if it is a bug but I recently (2 days ago) sent Emailed you a bug report that whenever I'm trying to Upgrade my to Ver 3 the Program is CONSTANTLY crushing AFTER a successful opening: I'm running Windows 7 - Home Premium on Intel Pentium D - the Musescore Ver 2 is running OK...
To this date of AUGUST 15th, 2020 I haven't received any help from you so your earlier advice & help would be greatly appreciated.
Many thanks.
Tony H.