---
title: "Dealing with common console errors"
description: "As you run your Minecraft server, you may run into various errors in the console."
url: "https://redhosting.com.br/en/base-de-conhecimento/lidando-com-erros-comuns-no-console"
type: "article"
language: "en"
category: "Minecraft"
published: "2025-04-04"
translations:
  pt-BR: "https://redhosting.com.br/base-de-conhecimento/lidando-com-erros-comuns-no-console.md"
  en: "https://redhosting.com.br/en/base-de-conhecimento/lidando-com-erros-comuns-no-console.md"
  es: "https://redhosting.com.br/es/base-de-conhecimento/lidando-com-erros-comuns-no-console.md"
  de: "https://redhosting.com.br/de/base-de-conhecimento/lidando-com-erros-comuns-no-console.md"
---

# Dealing with common console errors

As you run your Minecraft server, you may run into various errors in the console.

- RedHosting knowledge base guide — category: Minecraft
- HTML page: https://redhosting.com.br/en/base-de-conhecimento/lidando-com-erros-comuns-no-console
- Published on: 2025-04-04 · Language: en

As you run your Minecraft server, you may run into various errors in the console. Don't worry — many of them are easy to fix! Below are some of the most common ones.

## 1. Error: "Could not bind to port"

This error happens when the server tries to start but can't use the specified port.

**Common cause:** Another process is using port 25565.

#### Solution

- **Check whether another server is running** and close any unnecessary process.
- **Change the port** in the `server.properties` file:

```
server-port=25566
```

## 2. Error: "OutOfMemoryError: Java heap space"

**Common cause:** The server is trying to use more memory than is available.

#### Solution

- In the RedHosting panel, adjust the JVM startup parameters:

  ℹ️
  -Xmx4G -Xms4G

- This allocates 4GB of memory (adjust as needed).
- **Check your plugins and mods:** some of them can use a lot of memory.

## 3. Error: "FileNotFoundException"

**Common cause:** The file is missing or was moved.

#### Solution

- Make sure all required files are in the right directory.
- Consider reinstalling the server to restore the default files.

## 4. Error: "Plugin [name] is not compatible with this version"

**Common cause:** The plugin was built for a different Minecraft version.

#### Solution

- Download the version of the plugin that's compatible with your server.
- Update the plugin to the latest version.

## 5. Error: "Unable to access jarfile"

**Common cause:** The JAR file path is wrong or the file is corrupted.

#### Solution

- Check that the JAR file path is correct in the panel.
- Download the JAR file again if it's corrupted.

## 6. Error: "The server is overloaded"

**Common cause:** Too many players, plugins or mods overloading the server.

#### Solution

- Limit the number of players in `server.properties`:

```
max-players=30
```

- Temporarily disable plugins to find the problem.
- Follow the performance optimization tips.

## 7. Error: "NoClassDefFoundError"

**Common cause:** An incompatible plugin is trying to use a class that doesn't exist on the server.

#### Solution

- Make sure the plugin is compatible with your server version.
- Reinstall the latest version of the plugin.

## 8. Error: "EULA not accepted"

**Common cause:** The `eula.txt` file wasn't set correctly.

#### Solution

- Open the **eula.txt** file and change **eula=false** to **eula=true**.

```
eula=true
```

Save the file and restart the server.

## 9. Error: "Can't keep up! Is the server overloaded?"

**Common cause:** Too many entities, players or processes overloading the server.

#### Solution

- Use **ClearLag** to clear unnecessary items and mobs.
- Reduce the **view-distance** in `server.properties`:

```
view-distance=6
```

Poorly optimized plugins can also cause overload. Try disabling them to see whether the problem persists.

## Frequently asked questions

**Where do I see my server's errors?**

In the panel's Console tab while the server is running, and in the files inside the `logs` folder after it stops.

**The server shuts down right after starting. What is it?**

Read the last lines of the console before the shutdown: it's almost always an unaccepted EULA, a port in use, an incompatible Java version or a plugin that failed to load.

**What does "Can't keep up! Is the server overloaded?" mean?**

The server couldn't finish its ticks in time. It points to a processing overload, not a lack of memory.

## Navigation — Minecraft (article 5 of 12)

- Previous article: [How to improve server performance](https://redhosting.com.br/en/base-de-conhecimento/como-melhorar-o-desempenho-do-servidor.md) — https://redhosting.com.br/en/base-de-conhecimento/como-melhorar-o-desempenho-do-servidor
- Next article: [Allowing cracked and premium Minecraft clients on your server](https://redhosting.com.br/en/base-de-conhecimento/tornando-o-servidor-para-minecraft-pirata-e-original.md) — https://redhosting.com.br/en/base-de-conhecimento/tornando-o-servidor-para-minecraft-pirata-e-original
- Back to the knowledge base: https://redhosting.com.br/en/base-de-conhecimento

---

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