If that doesn't solve the problem, players can also try deleting and reinstalling the app. If that doesn't work, the player affected might have been banned by Niantic. If that's the case, emailing its support service will discover whether or not they are banned.Pack your bags and lace up your hiking boots—Adventure Week returns this year, bigger and better than ever! Expect new Shiny Pokémon to discover, limited-time Field Research, and rewards for exploring new areas with your Buddy Pokémon! https://t.co/bDfyxOW2Zt pic.twitter.com/zXRKRJ5Ur1
— Pokémon GO (@PokemonGoApp) May 30, 2019