error login

Hi @Nigel_-_Suzuki 

This is a public forum and not recommended to share your serial key. Please remove the serial key info.

Regards

Ravi

You can activate your software up to two times (e.g. for a desktop and a laptop computer, or for a work and a home computer). If the license counter sees more than those two activations, you will get the message you see. If you have activated your Acrobat before, you need to deactivate at least one of those systems before you can activate this computer. 

If this does not anwer your question, we cannot deal with licensing issues (most people in this forum are users of Adobe's technology, just like you), and you will have to contact Adobe's customer service: https://helpx.adobe.com/contact.html