If you’re a fan of Uma Musume: Pretty Derby, you know how fun and addicting this horse-girl racing game can be. But nothing breaks the vibe like seeing an error pop up when you’re trying to play. Error Code 390 is one that has caused confusion for many players. Don’t worry — fixing it is easier than it sounds!
In this guide, we’ll walk you through how to fix Error 390 in a few simple steps. No tech wizardry required. Ready? Let’s run!
What is Error Code 390?
Let’s start with the basics. Error Code 390 in Uma Musume Pretty Derby usually shows up when:
- The game servers are not reachable.
- Your connection is unstable.
- You are using a VPN or a region not supported officially.
- Your game files are corrupted or outdated.
This error basically means the game can’t talk to the server. It’s like trying to call a friend whose phone is turned off. But luckily, we’ve got a few ways to make that call go through.
Step 1: Check the Server Status
Before diving in deep, check if the problem is not on your end. Sometimes the servers are just down for maintenance or updates.
- Visit the official Uma Musume website.
- Check Japanese Twitter accounts like Uma Musume’s official Twitter for live updates.
If the servers are under maintenance, just take a break. Maybe grab a snack. You’ll be back on the track soon.

Step 2: Restart the Game and Your Device
This sounds too simple, right? But you’d be surprised how often a quick restart does the trick.
- Close Uma Musume completely — not just minimize!
- Restart your phone or tablet.
Open the game again and see if the error is still there. Fingers crossed!
Step 3: Check Your Internet Connection
Since Error 390 is linked to network issues, double-check your connection:
- Are you on a strong Wi-Fi network?
- Try toggling Airplane Mode off and on.
- Switch to mobile data or try another Wi-Fi network.
Bad internet = sad horse girls. Get that signal strong and steady!
Step 4: Disable Your VPN (If You’re Using One)
Uma Musume Pretty Derby was first designed for Japanese audiences, and some global players use a VPN to access the game. That’s cool… but VPNs can sometimes lead to this error.
Here’s what to do:
- Turn off your VPN entirely.
- Restart your device and try reopening the game.
If the game works fine without the VPN, you’ve found the culprit. You might need to switch to a more stable Japanese server or avoid the VPN altogether.
Step 5: Update the Game
Running an old version of the game? That could lead to glitches like Error 390.
- Go to the App Store or Google Play.
- Search for Uma Musume Pretty Derby.
- Tap “Update” if one is available.
Game updates often fix errors and bring cool new features too. So keep things fresh!

Step 6: Clear Cache or Reinstall
If all else fails, it’s time for deeper cleaning.
For Android users:
- Go to Settings > Apps > Uma Musume.
- Tap “Storage”.
- Tap “Clear Cache”.
Still no luck?
Next step:
- Back up your game data via your cygames account to avoid losing progress.
- Uninstall the app.
- Restart your device.
- Reinstall the game from a trusted source (App Store or Google Play).
Reinstalling gives you a clean slate. It’s like starting a new race, but with all your progress still there!
Bonus Tip: Check for Device Compatibility
If you’re using an older device, it might struggle with the latest version of the game. Here’s what you can try:
- Close other apps running in the background.
- Make sure your OS is fully updated.
Still having trouble? You may want to try playing on a newer device or use an emulator on your PC.
Extra Help: Where To Go
If you’re still stuck, you’re not alone! Lots of players face this sometimes. Here’s who can help:
- Check online forums like Reddit’s r/UmaMusume.
- Contact the game’s support through their support page.
- Join fan Discord servers — they’re full of helpful trainers!

Let’s Recap!
Dealing with Error 390 might feel annoying, but it’s usually an easy fix. Here’s a lightning-fast checklist:
- Check if the servers are down.
- Restart your game and device.
- Test your internet connection.
- Disable any VPNs you’re using.
- Update your game to the latest version.
- Clear cache or reinstall if needed.
Final Thoughts
Glitches like Error 390 can throw you off track, but they don’t have to ruin your fun. Thanks to these steps, you’ll be back racing with your favorite horse girls in no time.
Happy racing!🚩