Deprecated: ini_set(): Use of mbstring.internal_encoding is deprecated in /home/tresopme/public_html/4p/4p_core/init_set.php on line 23

Deprecated: ini_set(): Use of mbstring.http_output is deprecated in /home/tresopme/public_html/4p/4p_core/init_set.php on line 24
Error Handler Failure:
Cannot modify header information - headers already sent by (output started at /home/tresopme/public_html/4p/4p_core/init_set.php:23)
 /home/tresopme/public_html/4p/4p_core/core_Http_Header.php 71
/home/tresopme/public_html/4p/4p_core/core_Http_Header.php - 71
#0 [internal function]: exception_error_handler(2, 'Cannot modify h...', '/home/tresopme/...', 71, Array)
#1 /home/tresopme/public_html/4p/4p_core/core_Http_Header.php(71): header('HTTP/1.1 500 In...')
#2 /home/tresopme/public_html/data/route/error/500.php(2): Http_Header->http_500()
#3 /home/tresopme/public_html/4p/4p_core/core.php(250): include_once('/home/tresopme/...')
#4 /home/tresopme/public_html/index.php(13): Core->process()
#5 {main}
Original Failure:
session_start(): Cannot send session cookie - headers already sent by (output started at /home/tresopme/public_html/4p/4p_core/init_set.php:23)
 /home/tresopme/public_html/4p/4p_core/core_Session.php 61
/home/tresopme/public_html/4p/4p_core/core_Session.php - 61
#0 [internal function]: exception_error_handler(2, 'session_start()...', '/home/tresopme/...', 61, Array)
#1 /home/tresopme/public_html/4p/4p_core/core_Session.php(61): session_start()
#2 /home/tresopme/public_html/4p/4p_core/core_Session.php(74): Session->__construct(Object(init))
#3 /home/tresopme/public_html/4p/4p_core/core.php(349): Session::load(Object(init))
#4 /home/tresopme/public_html/4p/4p_core/Login/core_Login.php(70): Core->session()
#5 /home/tresopme/public_html/4p/4p_core/core.php(360): Login->__construct(Object(init))
#6 /home/tresopme/public_html/data/class/class_init.php(231): Core->auth()
#7 /home/tresopme/public_html/4p/4p_core/core.php(152): init->login()
#8 /home/tresopme/public_html/index.php(13): Core->process()
#9 {main}