Cydia was working fine for me earlier tonight... then out of the blue it wouldn't update the "changes" section tab. it is saying the last time I updated was 10pm yesterday, or around ~5 hours ago from this post. I have read online that this issue sometimes fixes itself, but is there something I can do to resolve this? e.g. reinstall cydia or something? It still says loading database, refreshing database, etc... but it doesn't load any new packages.