what error do you get?
do you have any other version to install and test?
where did you downloaded it from? try to download from different place and try again
and I accidentally deleted moms favorite list many times while experimenting and had to setup over and over which was headache and now I can do it freely as I can restore once I messed up.
have you test that channel on different device or app? if yes and still same issue then its channel/server related. did you report to your provider about it?
if no then I would test that too just to make sure but I believe its server/channel related.