How to fix CAT error code in Destiny 2

Typically, when players are hit with an error message that prevents them from starting a live service game, things can go one of two ways. Often the problem is nebulous and difficult to deal with and the only thing to do is wait for the developer to fix it in the end. Longtime Apex Legends players still remember the common irritating code: Leaf Error Message, which plagued the game throughout its first year on the market and still pops up from time to time. However, sometimes the solution is simple and fortunately this is the case with the CAT error code in Destiny 2. In this quick guide, we will explain what the CAT error code is in Destiny 2 and how you can fix it.

The CAT error code indicates that the version of the game you are trying to start is different from the current Destiny 2 server build. This can happen if you try to start the game without first updating it to the current build. Typically, when you launch Steam on PC or any other platform, the game automatically updates to the latest version. If you try to launch Destiny 2 before the update is complete, the CAT error message will be displayed.

To fix the CAT error code and launch Destiny 2, simply stop the game and complete the update. If Destiny 2 still does not start, it may be during server maintenance, in which case the best (and only) course of action is to wait until the servers are back online.