check your account to verify your subscription is what you expect and to verify your adobe id, https://accounts.adobe.com
then sign out and then back in to your cc desktop application using the same adobe id used to verify your subscription: http://helpx.adobe.com/creative-cloud/kb/sign-in-out-creative-cloud-desktop-app.html
then install your premiere pro and ame
Unfortunately these tips did not work.
I should describe the problem in more detail: the Creative Cloud application and Premiere Pro 2020 are installed and work for the "non-admin user".
Running the Creative Cloud application (in admin mode) to get access to the other apps does crash the file (two choices: Exit or Repair... repairing doesn't work).
Access and download via web browser is possible without problems.
A sole installation (as admin) of the AME leads to the CC app and there also to nothing.
first try, resetting the cc app: To reset the Creative Cloud desktop app, make sure it's in the foreground, then press:
Win: Ctrl + Alt + R
Mac: Cmd + Opt + R
if that fails, try to repair
if that fails go ahead and uninstall/reinstall per the above link
if that fails, do a clean cc install following each applicable step:
uninstall every cc app including preferences, https://helpx.adobe.com/creative-cloud/help/uninstall-remove-app.html
then uninstall the cc desktop app, https://helpx.adobe.com/creative-cloud/help/uninstall-creative-cloud-desktop-app.html
clean your computer of cc files per http://www.adobe.com/support/contact/cscleanertool.html
check for, and if available, update your os
restart your computer (don't skip this)
reinstall the cc desktop app, https://creative.adobe.com/products/creative-cloud.
if you're unable to install the cc desktop app at this stage, use an administrator account (solution 4 here, https://helpx.adobe.com/creative-cloud/kb/creative-cloud-missing-damaged.html)
use the desktop app to install your cc programs/trials
A complete reinstallation of all programs solved the problem.