Fix crash

Signed-off-by: Peter Lemenkov <lemenkov@gmail.com>
Properly init last seen time value

Signed-off-by: Peter Lemenkov <lemenkov@gmail.com>
Properly set up timer

Signed-off-by: Peter Lemenkov <lemenkov@gmail.com>
Cosmetic

Signed-off-by: Peter Lemenkov <lemenkov@gmail.com>