Microsoft Exchange Server 2013 CU 2, Options > Settings > Mail Error

I just patched my Exchange Server 2013 to CU 2 but it returned an error when I tried to open Options > Settings > Mail as specified in the attachment? How to fix this problem?

Here is the full error:

Client Information
------------------
User Agent: Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.3; WOW64; Trident/7.0; .NET4.0E; .NET4.0C; .NET CLR 3.5.30729; .NET CLR 2.0.50727; .NET CLR 3.0.30729; InfoPath.3)
CPU Class: x86
Platform: Win32
System Language: en-US
User Language: en-US
CookieEnabled: true
-----------------
Exception Details
-----------------
Date: Fri Oct 4 08:05:11 UTC+0700 2013
Message: Unable to get property '_events' of undefined or null reference
Url: https://server/ecp/15.0.712.23/scripts/microsoftajax.js
Line: 5

Call Stack
----------


Dump Event
----------
	errorMessage = Unable to get property '_events' of undefined or null reference
	errorUrl = https://server/ecp/15.0.712.23/scripts/microsoftajax.js
	errorLine = 5
	errorCharacter = 57312
	errorCode = 0
	actionURL = 
	altKey = false
	altLeft = false
	behaviorCookie = 0
	behaviorPart = 0
	bookmarks = null
	boundElements = [object HTMLCollection]
	button = 0
	buttonID = 0
	cancelBubble = false
	clientX = 317
	clientY = 223
	contentOverflow = false
	ctrlKey = false
	ctrlLeft = false
	data = 
	dataFld = 
	dataTransfer = null
	fromElement = null
	keyCode = 0
	nextPage = 
	offsetX = 0
	offsetY = 0
	origin = 
	propertyName = 
	qualifier = 
	reason = 0
	recordset = null
	repeat = false
	returnValue = true
	screenX = 317
	screenY = 308
	shiftKey = false
	shiftLeft = false
	source = null
	srcElement = null
	srcFilter = null
	srcUrn = 
	toElement = null
	type = error
	url = 
	wheelDelta = 0
	x = 0
	y = 0
	getAttribute = 
function getAttribute() {
    [native code]
}

	removeAttribute = 
function removeAttribute() {
    [native code]
}

	setAttribute = 
function setAttribute() {
    [native code]
}


Detailed Call Stack
-------------------

How to fix this problem?

Thanks in advance.