I was trying to login to https://www.adobeaemcloud.com/content/packageshare/tools/login.html
But cannot able to login with my Adobe ID. Although I can login into Adobe.com.
Is the service for Package share is down?
Package share works fine for me.
Go to the any of the AEM instance and use <host>:<port>/crx/packageshare/index.html to login to package share.
If that does not work, drop an email to firstname.lastname@example.org
Try this - http://localhost:4502/crx/packageshare/login.html.
Moving this discussion to the Adobe Experience Manager forum.