Unexpected Lightroom classic turn off

Hi all and thank you in advance for your help,

I'm using Lightroom classic at home, in my desktop, and when travelling in my laptop. No issues in my desktop, but when working with my laptop at places where I don't have Internet connection, Lightroom turns off. I happens sereveral times a day.

When I restart the app, I have a message asking me to connect again to my creative cloud account.

I thought I could work 30 days without an Internet connection, but with this problem I simply cannot work. I can't even export 350 images for a timelapse becose I get the message asking if I'm sure to close Lightroom. If I answer "cancel", Lightroom also quits. And when I try to restart it again, it asks to connect to may account again.

The only way I can finish that work is keeping my mobile device turned on with a shared Interet connection. What... where are my 30 days offline?

Thank you all!

Francesc