Unable to add Action to send email for user

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Hello everyone,

I have a Zabbix 3.0.2 server running on Freebsd 10.3 jail.
The issue that I am facing with is that I'm not able to add a triggered action to send email alert to a user. The user was created as a Super Admin.

When I click the Add button besides Action operation it's giving me the bellow message:

Illegal string offset 'conditiontype' [actionconf.php:649 → CView->render() → include() → actionConditionValueToString() in include/actions.inc.php:115]
Uninitialized string offset: 0 [actionconf.php:649 → CView->render() → include() → actionConditionValueToString() in include/actions.inc.php:115]
Illegal string offset 'value' [actionconf.php:649 → CView->render() → include() → actionConditionValueToString() in include/actions.inc.php:117]
Uninitialized string offset: 0 [actionconf.php:649 → CView->render() → include() → actionConditionValueToString() in include/actions.inc.php:117]
Illegal string offset 'value' [actionconf.php:649 → CView->render() → include() → actionConditionValueToString() in include/actions.inc.php:117]
Uninitialized string offset: 0 [actionconf.php:649 → CView->render() → include() → actionConditionValueToString() in include/actions.inc.php:117]

I have added a valid SMTP server under Media types.

Any ideas ?