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Mortal Kombat Onslaught: How to Fix Error Running App

Don't panic if you've seen "Error Running App" in Mortal Kombat: Onslaught. Here are some fixes.

Mortal Kombat: Onslaught can be downloaded now, but not everyone is able to play. A handful of issues have prevented fans from exploring this new take on the deadly franchise. Here is how to fix the running app error in Mortal Kombat: Onslaught.

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How to Fix Running App Error in Mortal Kombat: Onslaught

Disable Game Center for iOS

One of the best fixes for those playing on Apple devices is to disable Game Center. A lot of users have reported that the game has multiple issues with logging into the service. Here are the steps to disable it:

  • Exit Mortal Kombat: Onslaught
  • Head to your phone’s Settings app
  • Click on Game Center
  • Click on Sign out

You’re now free to open the game and try to sign in again. Many players find success at this point and have been able to play like normal.

Check Your Mobile Device’s Firmware

Another common fix is to make sure your device is up to date. If it’s on the older side or simply hasn’t been updated in quite a while, you might not be able to play. Apple devices require at least iOS 15.0 while Android devices can be played from 8.0 and above.


Screenshot by GameSkinny

This should be a last resort when it comes to things you can actively do, but history has shown that annoying errors can sometimes be fixed by reinstalling. The game does download some files after the initial installation, but it’s thankfully not too much.

Wait It Out

When it comes to games that require an internet connection and log-in, sometimes the best option is to wait it out. There can be a lot of kinks when it comes to applications like this that might be out of the users’ hands. We suggest keeping an eye on the official Mortal Kombat: Onslaught Twitter account to stay up to date.

Hopefully that helps you understand how to fix the Running App Error in Mortal Kombat: Onslaught. We’ll be posting even more kontent for this bloody RPG soon, ranging from other error fixes to tips.

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Samuel Moreno
Samuel is a freelance writer who has had work published with Hard Drive, GameSkinny, Otaquest, and PhenixxGaming. He's a big fan of the Metal Gear Solid and Resident Evil series, but truth be told he'd sell his soul simply for a new Ape Escape game.