MementoMori

How to Fix Common Game Errors

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★ Version Updates: Version 2.14.0 Update
★ New Events: 1.5 Anniversary Campaign Event, A 200-Year First Love Panel Mission Event
★ Prayer of the Fleeting Characters: [Apostle of Caritas]Rosalie, Sivi, Asahi and Fenny
★ New Categories: Guilds & Character Profiles

Fix Errors

MementoMori game errors can prevent you from progressing in the game. Learn more about how to fix these game errors and keep your accounts safe.

How to Fix Common Game Errors

App Data Recovery

App Data Recovery lets you recover the data in case errors prevent you from progressing in the game. You can fix the bugs caused by the app data corruption with these steps.

1 reset game data
Click the Settings icon at the upper-right corner of the screen before you enter the game.
2 app recovery
On the Menu, click App Data Recovery.
3 recover
A window will pop out with a reminder that you are about to do app data recovery. Click Recover. This will recover the data needed.

Deleting and Reinstalling the App

Another way to fix errors is to delete and reinstall the app. Make sure to do this when you have already performed an Account Link.

Deleting and reinstalling the app without performing an Account Link will reset your game data to the beginning, and you might lose your data altogether.

Account Link Guide

Contact Customer Support

If the previous solutions do not fix the issue, it is time to report it to customer support.

How to Delete Your Account
1 reset game data
Click the Settings icon at the upper-right corner of the screen.
2 contact us
From the Menu, click Contact Us.
3 faq contact us
A window will pop out with a list of FAQs. Scroll down and click Contact.
4 bug and error
Select Bug/Error from the options.
5 This will direct you to an external window to your email. Create an email and mention that App Data Recovery and reinstalling the app did not fix the problem.

MementoMori Related Link

Tips and Tricks Partial  Banner - MementoMori

List of All Tips and Tricks

All Tips and Tricks Guides

Beginners' Guides
Beginner's Guide Daily Tasks Checklist
Beginner Mistakes to Avoid How to Make Your Characters Stronger
Character Reroll Guide How to Efficiently Collect Diamonds
How to Enjoy the Game to the Fullest How to Farm EXP & Kindling Orbs Efficiently
How to Overcome the Main Quest How to Collect and Use Runes
How to Collect and Use Boss Tickets How to Collect Witch Shards
How to Collect and Use Holy Fragments How to Collect and Use Dark Perfume and Grand Dark Perfume
How to Collect and Use Character Coins How to Collect and Use Rune Tickets
How to Collect and Use Battle Coins How to Collect and Use Guild Coins
How To Collect and Use Space-Time Coins How to Collect and Enhance Unique Weapons and Gear Sets
How to Collect and Use Witch's Letter and Witch's Invitation How to Collect and Use Chest Keys
How to Collect and Use Upgrade Panacea How to Collect and Use Fruit of Healing
How to Collect Gacha Tickets How to Get Guild Stocks
Awakening Guide Speed Tuning Guide
Fast Progression Guide How to Build Your Team
What to Do After the Start Dash Missions Am I Progressing Too Slowly?
Frequently Asked Questions
Should I Reforge My Gear? How Many Characters Do I Need to Reach LR?
What Should I Buy at the Shop? Should I Automatically Release N Characters?
Who Should I Pull With Witch's Invitations? Best Runes to Use
How to Fix Game Errors How to Reset Game Data and Delete Your Account
Game Mechanics
Combat System Explained Gear Guide
What is the Level Link Feature? Party Level Link System Guide
Buffs/Debuffs Guide How to Enhance Gear
What is the Invocation of Chance How to Change Your World and Server
What is Soul Affinity Guild Guide
How to Use the Wish List Feature Stats Explained
Guild Benefits and Perks How to Accept Guild Invites
How to Win Guild Battles Arcana Explained
Tree of Life's Dew Explained What is Adamantite?
Character Gacha Pull Rates and Bonus Rewards Rune Guide
Account Link Guide Recommended Premium Packs
VIP Feature and Recommended Levels How to Go Beyond Level 240
What is the Legend League What is a Grand Battle
What are Relics Which Relics Should I Prioritize
Should I buy Tree of Life's Dew with Diamonds? What to Buy During Events
Trials Guides
How to Clear the Cave of Space-Time Trial Fountain of Prayers Guide
Temple of Illusions Guide Battle League Guide
Tower of Infinity Guide

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