Cause of System error on Application.Storage.setValue() call

What is the cause of a System error on Application.Storage.setValue() call?   I am seeing a lot of these recently.

Offending lines below.

                Application.Storage.setValue("posV",true);
                Application.Storage.setValue("lonV",longitude);    
                Application.Storage.setValue("posV",false);

Error Name: System Error
Occurrences: 23
First Occurrence: 2024-09-11
Last Occurrence: 2024-09-25
Devices:
Venu® 3: 11.14
Forerunner® 965: 20.29, 20.26
App Versions: 0.18.3
Languages: deu, eng

Error Name: System Error
Occurrences: 3
First Occurrence: 2024-09-20
Last Occurrence: 2024-09-23
Devices:
Venu® 3: 11.14
App Versions: 0.18.3
Languages: deu

Error Name: System Error
Occurrences: 2
First Occurrence: 2024-09-14
Last Occurrence: 2024-09-20
Devices:
Venu® 3: 11.14
App Versions: 0.18.3
Languages: eng