Please upgrade to 1.12.2.
You also might want to upgrade your PHP 5.6 is pretty ancient.
Litespeed is not a supported webserver. I don't think that is your problem though.
What are your settings at: Admin panel -> Emails -> Settings
is Email Fetching enabled?
How are you calling cron?
Do you have the email configured at: Admin panel -> Emails -> Emails?
What are your settings?