Acrobat 2017 - returning to 'Trial version' each time - need to log in

[adwul62]

When double clicking a .pdf file, Acrobat 2017 is launched and I need to log in into my account.

After that, a window appears that 7 days are remaining before I need to purchase the software.

I click on the [Start Trial]  button.

I believed that Acrobat would be activated in the background. However, whilst I am logged in with my Adobe login (displayed under Help within Acrobat), at the bottom it says.

Does anyone out there has an answer on:

Q1: How to re-activate the product?

Q2: How to avoid this from happening again?

Thanks!

Later:

Acrobat repair, issue still remains

Acrobat update (no updates found), issue still remains

Re-install doesn't work either

Incredible...

[ls_rbls]

Hi,

Try the Licensing Repair Tool : https://www.adobe.com/support/contact/licensing.html

Steps to troubleshoot on macOS see here: https://helpx.adobe.com/x-productkb/global/error-licensing-stopped-mac-os.html

Steps to troubleshoot on MS Windows see here:  https://helpx.adobe.com/creative-suite/kb/error-licensing-stopped-windows.html