strange error from era on some devices

Error Name: System Error
Occurrences: 9
First Occurrence: 2021-05-13
Last Occurrence: 2021-05-16
Devices:
    fÄ“nix® 6 Pro / 6 Sapphire / 6 Pro Solar / 6 Pro Dual Power / quatix® 6: 16.60
    Forerunner® 245 Music: 6.20
Languages: eng, spa
Backtrace:
    PSX1_Vie.onSC:415
    PSX1_Vie.onLayout:364

minSdkVersion="2.4.0", erroor onSC calling from onLayout in line

using Toybox.Application.Storage as STO;

const STO_APP_SETT                =     "AppSett";

        var t =  
        [
            1,
            loadResource(Rez.Strings.OWL)
        ];
        STO.setValue(STO_APP_SETT, t);//<--------error

I have fenix 6 pro, and 16.60 and even changed language to eng and no error.

Is possible that is connected with full of "disk" on device?