Lo he pagado pero no no tengo acceso a las funciones pro, menuda mierda, alguien sabe si se puede hacer un reembolso?.
There are a number of reports of licencing/updating issues with CCleaner for Android.
Aparently there is a new version which is meant to fix it:
https://community.ccleaner.com/topic/65352-ccleaner-android-no-key/#comment-344084
If you are still having problems then you can contact support using the form here:
https://support.ccleaner.com/s/contact-form?language=en_US&form=general