The issue occurs because Odoo stores sessions in memory or temporary files, which are lost when the server restarts. To resolve this, you can configure Odoo to store sessions in the database by adding session_store = db in your odoo.conf file. Additionally, increasing the session expiration time with session_gc_time = 2592000 (30 days) can prevent frequent logouts. If you're using a restart script, you can also include an SQL command to update the session expiration date after each restart, ensuring that active sessions remain valid