Hi Francisco, sorry i don't speek spanish. From what i understood via Google Translator is, that you would like to buy a SimSync PRO package.
You need to be registered on my site to access the shop: https://www.simsync.de/e107_plugins/easyshop/easyshop.php?cat.1
From there you can buy the package you need.
General information about SimSync PRO can be found here: https://www.simsync.de/e107_plugins/forum/forum_viewtopic.php?24
and also how it works: https://www.simsync.de/simsyncpro/howdoesitwork
If you would like to test it before you buy a package, i can offer you a free 1 month "try before buy" package. This is equal to the "basic" package in the shop.
All i need to know than is the url of your league and your username on our site to setup this account.
If you have further questions, please do not hesitate to ask. I will try to answer as soon as possible.

Cheers
Achim