page builder ck params upgrade

Hi!
I bought page builder ck params a little time ago. Now i'm upgrading my site to joomla 3.8.1 and I get the advice to upgrade params at least to version 1.3. How can I do it?

Hi
you need to login on joomlack.fr and go into your account
if you subscription is still active, you can download the update for free, else you shall renew
Download the extension and install it over the existing one, to update
CEd

But I've already paid for ck params, I don't want to buy it twice.

if you subscription is still active, you can download the update for free,

if your subscription is expired, this si the normal way to pay again to access the updates. This is not a lifetime subscription for all updates. the software continue to work without time limit, but not for the updates