Проблема отображения интерфейса zabbix

Loading failed for the <script> with source “http://zabbix.specialistoff.net/jsLoader.php?lang=en_US&ver=6.4.0&showGuiMessaging=1”.

Uncaught ReferenceError: jQuery is not defined
    <anonymous> http://zabbix.specialistoff.net/jsLoader.php?ver=6.4.0&lang=en_US&files[0]=layout.mode.js&files[1]=servercheck.js:22
    <анонимный> http://zabbix.specialistoff.net/jsLoader.php?ver=6.4.0&lang=en_US&files[0]=layout.mode.js&files[1]=servercheck.js:22

Uncaught ReferenceError: jQuery is not defined
    <anonymous> http://zabbix.specialistoff.net/zabbix.php?action=dashboard.list#:40

    <анонимный> http://zabbix.specialistoff.net/zabbix.php?action=dashboard.list#:40

Uncaught ReferenceError: $ is not defined
    <anonymous> http://zabbix.specialistoff.net/zabbix.php?action=dashboard.list#:45
zabbix.php:45:2
    <анонимный> http://zabbix.specialistoff.net/zabbix.php?action=dashboard.list#:45

Uncaught ReferenceError: chkbxRange is not defined
    <anonymous> http://zabbix.specialistoff.net/zabbix.php?action=dashboard.list#:100
zabbix.php:100:1
    <анонимный> http://zabbix.specialistoff.net/zabbix.php?action=dashboard.list#:100

proxy_buffering off;