When trying to translate a document in Trados Studio 2022, the following error message is thrown:

Key not found: 'e404caca-1efe-b1e5-369fd17b8b14'. Parameter name: Key

Please reset Trados Studio 2022 by renaming the 17 and Studio17 folders from C:\Users\username\AppData\Roaming\Trados\Trados Studio.

(Note: you need to replace username with the username of your PC, which you can find if you type cmd in the Windows Search bar, then type whoami in the Command Prompt window and press Enter)

Please note that if you had plugins installed before the reset, you will need to install them again.