Minecraft Java Exception In Tick Loop Fix

Introduction

If your Minecraft server is crashing with a "java.lang.NullPointerException: Exception in server tick loop" error, this is usually caused by corrupted player data files. Here's how to fix it.

Prerequisites

• Access to the Lagless Panel.
• A running Minecraft Java Edition server managed through Lagless Panel.
• Basic understanding of server management.

Steps to Fix Session Lock errors

1. Log in to the Lagless Panel

1. Open your web browser and go to the Lagless Panel.
2. Log in with your Lagless Panel credentials.

2. Navigate to Your Server

1. From the Lagless Panel dashboard, select the Minecraft server you want to configure.
2. Click on the server name to access its management page.

3. Stop your server (if running)

1. Press the "Stop" button on the top right of the panel.

4. Access the File Manager

1. In the server management interface, navigate to the File tab.
2. Delete the ops.json, usercache.yml, and whitelist.json files

5. Start your server

1. After making the necessary changes
2. Go back to the server management interface and start the server.

Conclusion

By fixing the "java.lang.NullPointerException: Exception in server tick loop at net.minecraft.server.v1_7_R3.JsonList.load(JsonList.java:171)" crash, you can now start your server without a crash.