This is most likely due to an outdated version of the JetBrains Academy Plugin.
Please ensure that your IDE and the JetBrains Academy plugin are up to date. To update your IDE to the latest version, on the welcome screen please click on the Gear Icon > Check for Updates... and install all available updates.
If you have any problems with the update or the problem reproduces even after updating your IDE and plugin, please send a request using this link and collect the full IDE log bundle as per this article and attach it to your request.
Please note that the latest version of the plugin will not be offered for upgrade if you do not have the latest version of the IDE installed.