Don't use 'BuildContext's across async gaps.
Try rewriting the code to not use the 'BuildContext', or guard the use with a 'mounted' check.dartuse_build_context_synchronously

context.mounted

Just wrap the error part with the following. We will process it after confirming the mount.

if (context. mounted) {

if (context.mounted) {
      if (isPrayedToday < 1) {
        _modalSalatFaithWrite.salatWrite(context, _controller);
      } else {
        _getShowModalAlreadyToday(context,
            S.of(context).modal_today_prayer_already);
      }
    }