To Do Crashing on iPhone

Hi,

I have been using To Do on my iphone for few years and just recently started crashing and becoming annoying. 
I tried many things such as deleting the app and reinstalling it, restarting my iphone, etc. but with no luck. I have been doing that for at least 3 weeks. 

I am using the latest To Do version and iOS 17.5 

Any help or Microsoft contact for To Do?

Thanks