I am trying to use zextras suite trial in order to migrate an old ZCS 8.0.9 in Ubuntu 12.04 to ZCS 8.8.15 in Ubuntu 8.8.15.

After install procedure shows

Hoy, 9:45 - Crítico: ZeXtras Suite License Disabled
This is an automated notification from ZeXtras Suite. The following warning(s) have been detected. Your ZeXtras Suite License is expired. All ZeXtras Suite paid modules have been forcibly disabled. The ZeXtras Chat module and any other free feature won't be affected. Please make sure you either obtain a new license or extend the duration of the current one in order to resume ZeXtras Suite's full functionality.
Of course, i did the previous server migration with zextras suite, the migration end flawless, next i uninstall the suite.

I made a ticket, the support team anwers was : "You need to buy a license because your trial period expired".

In my undestanding i am using the free module backup (former migration tool) and zextras suite.

Can you help me?