#0 Uncaught exception 'ErrorException', with message 'session_start(): A session had already been started - ignoring' in consumers_rego1.php:53

Stack trace:

#0 >>> consumers_rego1.php(53)
#1 ^ (): error_handler(integer, string, string, integer, array)
#2 ^ consumers_rego1.php(53): session_start()
#3 ^ home_logged_out.php(104): include(string)
#4 ^ Template.php(53): include(string)
#5 ^ Response.php(148): render()
#6 ^ Oe_consumers.php(9305): render(object)
#7 ^ Oe_consumers.php(7396): redirectToConsumerLoggedOutPage(object, object, array, array)
#8 ^ RouteDispatcher.php(179): read_rego1(object, object, array)
#9 ^ index.php(90): dispatch(object, object, array) 

'From' address is not a string data type..