Auto Login Add On is not working

Hi,
I Have enabled “Login log out menu add on” , “Login redirects add on” , “Hide Login add on” and ” Limit login attempts add on” and they are working perfectly.

I need to enable and use “Auto login addon” which is very important for me. When I enable it it shows the green check mark and shows enabled. but nothing added to the plugin setting or somewhere else. once I go back to check if its still enabled, It shows disabled. It never remain enable. even by refreshing the page after enabling , it goes to disable.

Please help