The following error is displayed when you try to login on the Devolutions Server web page.
error_description:The specified 'client_id' is invalid.
The reason of this issue is the upgrade that has been made with an older Devolutions Server Console version. To solve this problem, please go on the Devolutions Server download page to download the Devolutions Server Console version that correspond to the Devolutions Server web application version and install it. Then, install again the Devolutions Server web application over the current installation with the Update button in the Server tab.