Hi @lcrible , this is an issue where PsychoPy is using your user details to access your account on pavlovia, but this account no longer exists. To fix, you need to remove the old user details from your computer. The user details are saved in the .AppData folder. AppData is a hidden folder, so read here to find it. When found, go to AppData > Roaming > PsychoPy3 and delete the Pavlovia folder. The folder contains information about your user details (in user.json) and any projects associated with that user name (in projects.json). Both files contain links to a user account that no longer exists. Deleting them should solve your error above.