Ecshop Vietnam Application Error

The application could not run because of the following error:

Type: E_NOTICE [8]

Message: Undefined variable: data in /home/snxbguuqhosting/public_html/bachkhoacuocsong.com/includes/lib_base.php

Line: 1255

Stack trace:

#0 /home/snxbguuqhosting/public_html/bachkhoacuocsong.com/includes/lib_base.php(1255): ErrorHandler->handleError(8, 'Undefined varia...', '/home/snxbguuqh...', 1255, Array)
#1 /home/snxbguuqhosting/public_html/bachkhoacuocsong.com/includes/lib_common.php(648): read_static_cache('shop_config')
#2 /home/snxbguuqhosting/public_html/bachkhoacuocsong.com/includes/init.php(139): load_config()
#3 /home/snxbguuqhosting/public_html/bachkhoacuocsong.com/index.php(20): require_once('/home/snxbguuqh...')
#4 {main}