Have you tried to see if there's an update? 

Otherwise, go to Settings > Apps > Primal > Disable/Force Stop, then scroll down and click "Clear Cache" and see if that helps.

You could also try uninstalling and then reinstalling just the APK from someplace like nostr:nprofile1qy2hwumn8ghj7erfw36x7tnsw43z7un9d3shjqpq0r8xl2njyepcw2zwv3a6dyufj4e4ajx86hz6v4ehu4gnpupxxp7slzk40u instead of from Google Play store.