Your license key isn't valid for this domain after update to perch 3
Since a few weeks I wasn't able anymore to login to the perch panel so I updated runway to version 3 according to the instructions I found here: https://docs.grabaperch.com/runway/upgrading/
After the update, I still wasn't able to login and still got the error message "Sorry, your license key isn't valid for this domain. Log into your Perch account and add the following as your live or testing domain: headoffice.be". The license key in the config file is the same as written here https://account.perchcms.com/licenses/runway
Are there some other things that need to be done?