Try this to fix common problems:
- Turn off server. Delete all mod files from your ark folder and server's ark folder.
- Unsubscribe from all mods from your workshop 'subscribed items' page.
- Launch ark game and wait at main menu screen.
- Resubscribe to mods you want to use.
- Let mods download finish at main menu screen.
- Transfer back the new fresh mod files to your server manually, using a file transferrer.
- Double check all the mod id is correct in server setting and no typos.
- Turn on server restart it.

1. Follow these steps to install/update a mod manually and Safely on External / Dedicated Servers:
   
   Click Here For Link[www.bluefangsolutions.com]
   • But for Singleplayer or local, subscribe to a mod and download via game menu, GameUserSettings.ini and Game.ini are instead found in your drive: (Steam\steamapps\common\ARK\ShooterGame\Saved\Config\WindowsNoEditor\)
   
   
2. Custom mod-update or load scripts from server hosts like Nitrado are known to be buggy and will cause mod problems. Instead use Step 1 or this Auto-Updater tool:
   
   Click Here For Link
   
   
3. Custom mod-updating from other third party software may also be unsupported and buggy.
   
   • Instead you can use the official Ark Server Launcher and this tool for rcon
     
     Click Here For Link
   
   
4. Do a clean redownload of all Mod files and delete any unused old ones.
   Mod files can be found in your server or local computer's drive path folder (..\ARK\ShooterGame\Content\Mods\)
   
   • Each folder name corresponds to the mod id number.
     
   • Remember to delete the .mod files too. Unsub from old mods you not using.
     
   • After deleting, launch your game and wait at menu till it redownloads subbed mods finish: progress shown bottom right corner.
     
   • Then copy back the mod folders and files (including .mod) from your local to your server's. Do NOT overwrite, remember to delete ALL mod files from server first.
   
   
5. If your world has errors or items gone missing after server reboot, it is because the mod has failed to load correctly (can be caused by buggy custom scripts and corrupted downloads from steam after mod updates).
   Here is how to restore from an autosave backup of your game.
   
   • Go to server's or local drive folder (..\ARK\ShooterGame\Saved\SavedArks\).
     
   • Look for TheIsland.ark files. Find the most recent saved modified timestamp before you restarted server in the files TheIsland-datetime.bak, (datetime will be a string of number digits).
     
   • Copy any TheIsland files you wish elsewhere in another folder first to backup safely.
     
   • Then rename that TheIsland-datetime.bak to TheIsland.ark instead inside the SavedArks folder. (Remove the pre-existing one)
     Your server will load it when it boots up, all your game stuff and items in world is there.
   
   
6. Last thing when all else fails: Double check you didn't make mistakes with loading mod-id number. Use Google search for more answers.