Hello @paulo.carneiro.email,
Welcome to the LastPass Community!
I apologize for the huge inconvenience this is causing you. I have seen that this issue is mostly related to a high volume of cache, cookies, or a sync issue on LastPass. I will recommend following these steps:
Note: Before making any of these steps, please make sure you know your master password!
1. Clearthe LastPass cacheandrefresh sitesfrom the LastPass extension, log out
2. Proceed touninstall the LastPass extension, and clear cache and cookies (all time) on the browser
3. Close completely and reopen the browser,install the extension again, log back in, and verify if the issue persists
I will also recommend checking under Account Settings> Show advanced settings> Security> Auto-log off will be set for "2 weeks"
If the issue persists, let me know.
Thank you,
Alejandra
LastPass Support