Cannot update to 2.1

Hello, I am trying to update my theme to version 2.1 via wordpress and I am receiving the below error: Update Themes The update process is starting. This process may take a while on some hosts, so please be patient. Enabling Maintenance mode… Updating Theme Catch Fullscreen Pro (1/1) An error occurred while updating Catch Fullscreen Pro: Update package not available. Disabling Maintenance mode… All updates have been completed.