Wrong link on developer sandbox page

My DevSandbox account expired, so I created a new one

On the 'start using your sandbox' page clicking on the red button redirects me to a 404 error page

bad link:

https://codeready-codeready-workspaces-operator.apps.sandbox-m2.ll9k.p1.openshiftapps.com//

I need to remove the second trailing / at the end of the URL to make it working