Issues with ITEM_TYPE_DB_MONITOR

[moisedo]

For some reason when i go to retrieve any information from Triggers, ITEMS, etc. im getting these messages on the bottom:

Use of undefined constant ITEM_TYPE_DB_MONITOR - assumed 'ITEM_TYPE_DB_MONITOR' [items.php:34 → getParamFieldNameByType() in /usr/share/zabbix/include/items.inc.php:1282]
Use of undefined constant ITEM_TYPE_DB_MONITOR - assumed 'ITEM_TYPE_DB_MONITOR' [ in /usr/share/zabbix/items.php:60]
Use of undefined constant ITEM_TYPE_DB_MONITOR - assumed 'ITEM_TYPE_DB_MONITOR' [ in /usr/share/zabbix/items.php:81]
Use of undefined constant ITEM_TYPE_DB_MONITOR - assumed 'ITEM_TYPE_DB_MONITOR' [items.php:82 → getParamFieldLabelByType() in /usr/share/zabbix/include/items.inc.php:1297]
Use of undefined constant ITEM_TYPE_DB_MONITOR - assumed 'ITEM_TYPE_DB_MONITOR' [ in /usr/share/zabbix/items.php:154]
Use of undefined constant ITEM_TYPE_DB_MONITOR - assumed 'ITEM_TYPE_DB_MONITOR' [items.php:1218 → getItemFilterForm() → item_type2str() in /usr/share/zabbix/include/items.inc.php:92]


Any information will be appreciated. Thanks!