How to fix Pokemon Sleep Error code 009901

Ezequiel Leis
Bulbasaur, Charmander, and Squirtle sleeping

Pokemon Sleep became a sensation overnight but some players are experiencing issues with the sleeping app. If you’re encountering the Pokemon Sleep Error code 009901, check out this guide on how to fix it.

After a staggered release, Pokemon Sleep is available worldwide and fans of the franchise are capturing all sorts of Pokemon by sleeping. While the game has gorgeous art direction and takes notes from the whole history of the franchise, it isn’t immune to errors and issues that interfere with the gameplay.

After the very first Pokemon Sleep update, many players encountered the Error code 009901 which prevents them from opening the game. If you’re facing that issue, we’ve got you covered with a quick guide on how to fix it.

How to solve Pokemon Sleep Error code 009901

If you were trying to play Pokemon Sleep and got a screen saying ‘An Error has occurred’ followed by the code 009901, you won’t be able to access your game until you fix it. Here are a couple of things you can try to solve all your Pokemon Sleep problems:

  • Check if you have the latest version of Pokemon Sleep. Go to Google Play (Android) or the App Store (iOS) and check if there’s a newer version you can download.
  • Android users can also clean the app’s cache data and open the app again.
  • If the error persists, you can always reinstall the app to get the latest files directly from the source.

This is a pretty standard procedure for any other app, and it’s proven effective to fix the Error code 010100 as well.

Pokemon Sleep received its first update on July 25, so you might want to check it out to ensure your game is up to date. The good news is that you can track your sleep while the game is under server maintenance, so you can still make daily progress.

It’s also useful to keep yourself updated with Pokemon Sleep social media accounts. If there’s a big issue affecting many players, you’ll find useful information on official channels.

That should do it! You can now fix Error 009901 in Pokemon Sleep and prevent future issues as well.

For more on the sleeping app, check out some of our other articles below:

Every Pokemon in Pokemon Sleep: All Sleep Types, how to catch & shiny availability | How to get Dream Shards in Pokemon Sleep | Is Pokemon Sleep compatible with Apple Watch? | Are there Shiny Pokemon in Pokemon Sleep? | How to pair Pokemon Go Plus+ with Pokemon Sleep & Pokemon Go | Pokemon Go Plus+: How to track sleep

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About The Author

Ezequiel is a Games Writer at CharlieIntel. With a great knowledge of gaming, he's focused mostly on Pokemon, Fortnite, and HoYoverse titles such as Genshin Impact and Honkai Impact. With a journalism degree, Ezequiel has worked on La Cosa and Infobae, two of the most prestigious outlets in Latin America. He joined CharlieIntel in 2023. You can reach Ezequiel at [email protected]