• It expired user session at certain time of browser inactivity.
• There is SessionTimeOut web block inside the assest.
• Just take dependency of same web block inside your module and provide value in following input parameters:

IdealTimeOut - Expiration time in seconds.

WarningMessgaeTime - Warning message time in seconds.

LoginPageURL - This is site property which is used to provide URL of login page on which user will be navigate after logout.