Hello MisterD,
I'm sorry to hear that you are having troubles with the app. When I look at Apple iTunes App Analytics, I do see a two crashes reported on June 2nd. However, there doesn't seem to be any crash logs to be downloaded that would help me determine the problem. When the app crashes, does your iPhone ask if you'd like to upload a crash log?
You may need to alter your iPhone settings to allow the crash logs to be shared with me. Please go into:
Settings -> Privacy -> Analytics & Improvements then enable:
Share iPhone Analytics and:
Share with App Developers
Also, can you tell me if there is anything unique about your iPhone ... for example, what language settings do you use? Is this the first time you have installed the app or did you perform an upgrade from the previous release?
I just performed a clean new install on an iPhone 11 running iOS 13.4.1 with the language setting of US English and did not have any problem.
Thanks for reporting the problem and for your assistance in fixing it.