It's a bit tricky from what I understand, to exactly determine cause-effect in these cases. If somebody has a Sunday issue with either LCR or Tools (or even Gospel Library), I'd chalk it up to the typical and recurring issues that many of us regularly encounter when the Church's systems become overloaded (or whatever the actual underlying issue is) on Sundays. Nobody is happy with that, but all we can do as local members is submit Feedback and have patience.
If users also have recurring issues during the week accessing Tools, then besides the uninstall-then-reinstall approach, a couple of other ideas come to mind. That includes trying to log onto their account using another person's Tools app on the other phone, which may or may be successful. Or having a member friend try logging onto the Tools app that is having issues, to see if they can do it or if they also have the same issues. Again, just trying to get a better understanding of whether it's the particular phone itself, or something related to the particular member's church account.
