Premiere Elements 2021 keeps crashing following update in Sept 2021

I have had Premier Elements 2021 on my computer for a while and have used it without any issues until two days ago (September 2021).

My colleague is experiencing exactly the same issue that started at the same time.

Both my application and a colleagues application are triggering crash reports any time we try and enter the program.

We have uninstalled and reinstalled a clean version and that does the same.

This is a new problem that has only started for both of us in the last few days and think it may be to do with an automatic update that you have released.

Please tell me how I resolve this urgently.