> ## Documentation Index > Fetch the complete documentation index at: https://help.freakhosting.com/llms.txt > Use this file to discover all available pages before exploring further. # Arma 3 Server Mods Not Loading? How to Fix modlist.html Errors > Arma 3 server mods not loading? Fix the modlist.html warning, check the file name and Launcher export, use lowercase folder names, semicolons and Workshop IDs. If Arma 3 server mods are not loading, read the **Console** after a restart. The warning `Arma 3 Modlist file "modlist.html" could not be found, or is invalid!` means the uploaded file's name doesn't match the **Modlist File** variable or wasn't exported from the Arma 3 Launcher. For uploaded mods, use lowercase folder names in **Additional Mods** and try **\[Repair] Make Mod Files Lowercase** once. | Fact | Value | | - | - | | Where to look | **Console**, the line after `Starting server with the following startup parameters:` | | Modlist file | `modlist.html` in `/home/container/` (name set on **Startup**) | | Folder rule | No capital letters, no spaces, not starting with a number | | Repair options | **\[Repair] Make Mod Files Lowercase**, **\[Repair] Validate Server Files** | ## Check the startup line first After a restart, the console prints the full parameter line. Look at `-mod=` and `-serverMod=`. If a mod is missing there, the panel didn't add it: check the variables below. If the mod is listed but doesn't work in game, check the folder and its keys. ## Fixes for Arma 3 mods not loading | Symptom | Cause | Fix | | - | - | - | | `modlist.html" could not be found, or is invalid!` | No file with that name in the root | Upload the file to `/home/container/` and name it exactly as in **Modlist File (Exported from A3 Launcher)**. | | Same warning, file is there | The file wasn't exported from the Arma 3 Launcher | Export the preset from the Launcher again. Hand-made lists and files from other tools are rejected. | | You use no modlist and want the warning gone | **Modlist File** is still `modlist.html` | Clear **Modlist File** on **Startup**. The server then starts without a modlist and doesn't warn. | | Uploaded mod missing from `-mod=` | Not in **Additional Mods**, or names not separated | Add it as `@mymod;`. Separate several folders with semicolons: `@mymod;@othermod;`. | | Mod listed but not working | Capital letters in folder or file names (Linux is case-sensitive) | Turn on **\[Repair] Make Mod Files Lowercase**, restart once, then turn it off. | | Folder name rejected or ignored | Spaces, capitals or a leading number | Rename it, for example `@my_mod` instead of `@My Mod` or `@1stmod`. | | Workshop mod not downloading | **Automatic Updates** off, or the item isn't available on the Workshop | Turn **Automatic Updates** on, or upload the mod yourself. | | Players kicked after joining | Missing `.bikey` in `keys/`, or different mod versions | See [signature errors](https://help.freakhosting.com/games/arma-3/enforcing-v2-signatures.md). | | Mission says an addon is missing | A mod the mission needs isn't loaded | Add the mod, or remove the mission's dependency. | | Server files damaged after a failed update | Broken game files | Turn on **\[Repair] Validate Server Files** for one start. It makes the start much slower. | ## How to check a Workshop mod by ID Workshop mods from `modlist.html` are stored in folders named `@` plus the Workshop ID, for example `@450814997` for CBA\_A3. To add a single Workshop mod without the modlist, put that form in **Additional Mods**, for example `@450814997;`. With **Automatic Updates** on, the server downloads and updates it. ## When to restore or reinstall If nothing helps, restore a [backup](https://help.freakhosting.com/portals/game-panel/how-to-create-and-restore-backups.md) from before you added the mods. [Share the console log](https://help.freakhosting.com/portals/game-panel/how-to-use-the-server-console.md) with our team in a [ticket](https://freakhosting.com/clientarea/submitticket.php) if you need help. ## Frequently asked questions ### Can I ignore the modlist.html warning on a vanilla server? Yes. Without a modlist the server starts with no Workshop mods. Clear **Modlist File** if you don't want the warning. ### Why do mods from my Windows PC not load? Windows ignores capital letters in file names, Linux doesn't. Use **\[Repair] Make Mod Files Lowercase** for one start after uploading. ### Do I need to restart after changing mods? Yes. Mods are only loaded when the server starts. ## Related guides > [card] [Arma 3 server guide](https://help.freakhosting.com/games/arma-3/arma-3-server-hosting-guide.md) > > Every Arma 3 page in one place. > [card] [Install mods](https://help.freakhosting.com/games/arma-3/installing-mods-and-mission-files-in-arma-3.md) > > modlist.html and Additional Mods. > [card] [Signature errors](https://help.freakhosting.com/games/arma-3/enforcing-v2-signatures.md) > > Keys and verifySignatures. > [card] [Startup parameters](https://help.freakhosting.com/games/arma-3/understanding-startup-parameters.md) > > Every Startup variable explained. > [card] [Server console](https://help.freakhosting.com/portals/game-panel/how-to-use-the-server-console.md) > > Read and share the console. *** > [!NOTE] > > **Tested by the FREAKHOSTING team** on our Game Panel on 31 October 2026 (Arma 3 dedicated server 2.22). Steps may differ slightly if the game changes. > [!NOTE] > > ### Need Extra Help? > > If you encounter any issues, our support team is ready to assist: > > * **Live Chat:** Quick assistance via our website. > * **Support Ticket:** [Open a Ticket](https://freakhosting.com/clientarea/submitticket.php) > * **Discord:** [Join our Community](https://discord.gg/freakhosting) > * **Email:** [support@freakhosting.com](mailto:support@freakhosting.com) > [!TIP] > > ### Save on Your Hosting > > Ready to upgrade your hosting? Use code **KB20** at checkout for **20% off** your first order! *** **Last Updated:** October 2026 This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.