ADRIA LEADER ERROR HANDLER

object(Error)#1 (7) { ["message":protected]=> string(31) "Undefined constant "SHOP_TITLE"" ["string":"Error":private]=> string(0) "" ["code":protected]=> int(0) ["file":protected]=> string(70) "/home/adrialeader/public_html/adria_back/views/admin/template/head.php" ["line":protected]=> int(5) ["trace":"Error":private]=> array(4) { [0]=> array(3) { ["file"]=> string(67) "/home/adrialeader/public_html/adria_back/controllers/controller.php" ["line"]=> int(79) ["function"]=> string(7) "include" } [1]=> array(6) { ["file"]=> string(78) "/home/adrialeader/public_html/adria_back/controllers/admin/loginController.php" ["line"]=> int(11) ["function"]=> string(4) "view" ["class"]=> string(10) "Controller" ["type"]=> string(2) "->" ["args"]=> array(3) { [0]=> string(5) "login" [1]=> string(0) "" [2]=> array(0) { } } } [2]=> array(6) { ["file"]=> string(66) "/home/adrialeader/public_html/adria_back/includes/page_manager.php" ["line"]=> int(167) ["function"]=> string(4) "main" ["class"]=> string(15) "loginController" ["type"]=> string(2) "->" ["args"]=> array(0) { } } [3]=> array(4) { ["file"]=> string(67) "/home/adrialeader/public_html/mbm.adria-leader.host/admin/index.php" ["line"]=> int(31) ["args"]=> array(1) { [0]=> string(66) "/home/adrialeader/public_html/adria_back/includes/page_manager.php" } ["function"]=> string(7) "include" } } ["previous":"Error":private]=> NULL } file: /home/adrialeader/public_html/adria_back/views/admin/template/head.php
line: 5
error: Undefined constant "SHOP_TITLE"