Zwangsweise Umstellung auf Starter Version von Creative Cloud Express

no.

you can't use photoshop, lightroom and bridge unless you already have a subscription to them.  

and that may be what you failed to explain and what caused confusion:

namely, you probably had a (photography?) subscription (that included cc express premium), and you let that subscription lapse (or it's about to lapse) causing your cc express to be downgraded (not upgraded) from cc express premium to cc express (free version).

what you get with cc express (free) is shown in the link i posted.  here's more explanation, What Is Adobe Creative Cloud Express and Who Is It For? (makeuseof.com)

now, if those inferences i made are incorrect, explain your situation more clearly.