# Reading the FS25 Server Log & Understanding Errors

> The log.txt is your most important tool for FS25 problems. Here's how to find the log, understand its structure and spot the crucial error entry in seconds.

**Short answer:** On the server in the web interface log viewer or as log.txt via FTP. Locally under C:\Users\YOUR-NAME\Documents\My Games\FarmingSimulator2025\log.txt

| | |
| --- | --- |
| Game | LS25 |
| Category | Troubleshooting |
| Difficulty | Beginner |
| Reading time | 6 min |
| Last updated | 2026-06-21 |
| Language | en |
| Source | https://agrarchaoten.com/en/guides/ls25-server-log-lesen |
| Other language | https://agrarchaoten.com/guides/ls25-server-log-lesen |

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## Contents

- [Overview](https://agrarchaoten.com/en/guides/ls25-server-log-lesen#ueberblick)
- [Where do I find the log?](https://agrarchaoten.com/en/guides/ls25-server-log-lesen#wo-finde-ich-log)
- [Structure of the log](https://agrarchaoten.com/en/guides/ls25-server-log-lesen#aufbau)
- [The most important lines](https://agrarchaoten.com/en/guides/ls25-server-log-lesen#zeilen-verstehen)
- [Finding errors quickly](https://agrarchaoten.com/en/guides/ls25-server-log-lesen#fehler-finden)
- [Practical tips](https://agrarchaoten.com/en/guides/ls25-server-log-lesen#tipps)
- [FAQ](https://agrarchaoten.com/en/guides/ls25-server-log-lesen#faq)

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## Reading the server log — overview

The **log.txt** is your most important tool for every FS25 problem. Whether it's a crash, a missing mod, a dropped connection or a LUA error — the cause is almost always in the log. In this guide you'll learn where to find the log, how it's structured and how to spot the relevant entry in seconds.

**Remember:** 90% of "my server doesn't work" cases can be solved just by looking at the log. You don't have to be a programmer — you just need to know what to look for.

## Where do I find the log?

- **On the server:** The web interface usually has a built-in log viewer. Alternatively, the `log.txt` sits in the server directory, accessible via FTP.
- **Locally (singleplayer/client):** Under `C:\Users\YOUR-NAME\Documents\My Games\FarmingSimulator2025\log.txt`

**Important:** The log is **overwritten** on every start. If an error occurs, back up the `log.txt` before restarting the server — otherwise the entry is gone.

## Structure of the log

The log reads chronologically from top to bottom: first the game start, then mod loading, then regular operation. Every line has a type:

## Understanding the most important lines

- **Error: Running LUA method ... + "LUA call stack":** Script error from a mod. The path names the culprit (see the separate LUA error guide).
- **Error: Can't load resource / file not found:** A file is missing or corrupted — usually a mod that wasn't fully uploaded.
- **Warning: ... has invalid ...:** A mod or the config contains an invalid value. Often tolerable, but it can break features.
- **Missing mod / mod not found:** The savegame needs a mod that's missing on the server — install it before starting.

## Finding errors quickly

**1. Search for "Error"**

Open the log and press Ctrl+F. Search for `Error`. Jump through every hit — errors are the real problems.

**2. Search for "LUA call stack"**

This term takes you straight to mod script errors, including the mod name in the path.

**3. Check the end**

After a crash, the cause is almost always in the **last lines** before the cutoff. Scroll all the way down.

**Support tip:** When asking in a forum or contacting your host's support, always attach the relevant log lines (or the whole `log.txt`). "It doesn't work" without a log just wastes everyone's time — with a log, the cause is often clear within minutes.

## Practical tips

**Before/after comparison:** Something stopped working after a change? Compare the log from before and after — the new error entry shows what the change broke.

**Learn to ignore warnings:** Many `Warning` lines are normal and show up even on perfectly running servers. Focus on `Error`.

## Frequently asked questions (FAQ)

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## Frequently asked questions

**Q: Where do I find the FS25 server log?**
A: On the server in the web interface log viewer or as log.txt via FTP. Locally under C:\Users\YOUR-NAME\Documents\My Games\FarmingSimulator2025\log.txt

**Q: What's the difference between Warning and Error?**
A: Warning lines are usually harmless and show up even on healthy servers. Error lines — especially with 'LUA call stack' — point to real problems.

**Q: Why is my log empty after a restart?**
A: The log gets overwritten on every start. Save the log.txt before restarting after an error.

**Q: What should I search for in the log?**
A: Use Ctrl+F to search for 'Error' and 'LUA call stack'. For crashes, the causes are usually in the last lines.

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## About this guide

This guide was written by the Agrar Chaoten community.

*Source: https://agrarchaoten.com/en/guides/ls25-server-log-lesen*
*Agrar Chaoten — https://agrarchaoten.com*