Fix: There Was an Unexpected Error Loading this Library on Plex

Last Updated on December 4, 2020



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In this tutorial we will show you how to fix the Plex bug: an unexpected error occurred when loading this library. Plex provides a convenient platform for watching movies live, streaming content online, and even playing local media content stored on your device. It works as both a crazy observer and a local media player. He claims to provide over 80 free live TV channels and nearly 14,000 free content on demand. However, right now many users report one or two bugs in this service.

The most common mistake of all is the problem with his library. Complaints are also reported in many Plex support forums. Even on Reddit users have shared this problem with Plex. This manual will be useful to you in this respect. Today we will show you how to fix the Plex bug: an unexpected bug has occurred when loading this library. We will also give you the reasons why you may encounter this bug. So, without further ado, let’s go to the manual.

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One thing that many people sometimes ignore is updates, whether on a smartphone, PC or server. The Plex server is something you will probably set up and forget, but you really need to keep track of it, especially if you have a problem that has already been fixed in a newer version. The first step is to check the version. Follow this process:

  • Login to the web interface of the server (https: // SERVER-IP-ADDRESS: 32400).
  • Click on the settings icon in the upper right corner.
  • Click on the Server tab. (The server should automatically check for updates and notify you when they are available).
  • Install a newer version.
  • Reboot the Plex media server.

Update all metadata

Some users who have already encountered this particular bug have successfully solved the problem by updating all relevant metadata on your Plex.TV server. This particular update has been confirmed by many affected users.

If you want to deploy this update in the affected section, follow the instructions below to update the relevant metadata:

  • First, go to your Plex.TV account and log in with your credentials.
  • After successfully connecting, click on the server action menu on the left menu.
  • Then click “Update all metadata”, confirm your choice and wait until the process is complete.
  • When the process completes, restart the Plex server and see if the problem is solved.

Access logs

Download and read the server logs to see what’s wrong (and provide materials that will help you better). Here’s how:

  • Log into the server web interface (https: // SERVER-IP-ADDRESS: 32400).
  • Click on the settings icon in the upper right corner.
  • Click on the Server tab.
  • Click on Help.
  • Click Download Logs.

Perform database optimization

It turns out that the appearance of this particular error is a good sign that your database needs optimization. Several affected users have confirmed that they have solved this particular problem by optimizing the database in which the “Unexpected error when loading this library” error is currently occurring.

If this scenario is applicable, follow the instructions below to start the database optimization process in Plex Media Player:

  • Go to Plex.TV and log in to your account by entering the necessary credentials.
  • Once the connection is established, click the action icon for that server on the left menu.
  • Then go to the Server Management menu in the context menu that appears and click Optimize Database.
  • On the last confirmation screen, click “Optimize” to start this process and wait for it to complete. Depending on the size of your server, this process may take several minutes.
  • When the operation is complete, repeat the action that previously caused the “Unexpected Error when loading this library” and see if this fixes the problem.


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