Why does my licence key not work anymore?

[Claudia OisisYoga]

I've got a licence key for Master collection CS6.

It runs since 2 Years without any problem. Since a few days i cannot start my Software.

By give in the licence key, ther comes the message, that it isn't the right key.

But it is. What can i do?
"Helpless on christmas"

[Guest]

Hi

Where did you get CS6 from, did you purchase it directly from Adobe, CS6 hasn't been sold by Adobe for some time now

https://helpx.adobe.com/creative-suite/kb/error-serial-number-valid-product.html

[Claudia OisisYoga]

i've got Sierra 10.12.2 on my mac and it runs up to a few days without any problems.

There was no update in this time.

[Claudia OisisYoga]

I buy it in december 2017 from a company from england. They dont't use the licence because of changing to Cloud.

[Nancy OShea]

Claudia OisisYoga

This forum is mainly fellow product users like you.  We cannot help you with serial number or activation issues.  Please contact Adobe Customer Care via online chat and ask them to verify your serial number is legitimate.

https://helpx.adobe.com/contact.html

Good luck and best wishes for the new year!

[Nancy OShea]

Which operating system do you have?

IMPORTANT NOTICE FOR MAC USERS: Creative Suite software won't work on Catalina which ended support for 32-bit apps.

[Claudia OisisYoga]

i've got Sierra 10.12.2 on my mac and it runs up to a few days without any problems.

There was no update in this time.

[John T Smith]

>I buy it in december 2017 from a company from england.

>They dont't use the licence because of changing to Cloud

When you buy used software, you MUST do a license transfer

Transfer (selling or giving your software away) https://community.adobe.com/t5/Get-Started/Can-Creative-Cloud-members-pass-on-or-sell-old-versions-o...
-you may NOT sell or transfer an Education serial number, or a volume license