The backend crashes when accessing a certain page. When I click on that page I get a Blank javascript alert and the FireBug gives me the a 500 error on the http://XXX.XXX/admin/getitem?ID=13&ajax=1

Host: XXX
User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.1.5) Gecko/20091102 Firefox/3.5.5
Accept: text/html,text/html,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-us,en;q=0.5
Accept-Encoding: gzip,deflate
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
Keep-Alive: 300
Connection: keep-alive
X-Requested-With: XMLHttpRequest
X-Prototype-Version: 1.4.0_rc3
Content-Type: application/x-www-form-urlencoded; charset=utf-8
Referer: http://XXX/admin/?isdev=1
Content-Length: 0
Cookie: sifrFetch=true; PHPSESSID=88idm7ce5fa8ab7sqq3c9r66h6; PastMember=1
Pragma: no-cache
Cache-Control: no-cache

I get a similar error when accessing sertain Image directories to add images to my pages

http://XXX/admin/EditForm/field/ProdImage/import/143

Host: xxx
User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.1.5) Gecko/20091102 Firefox/3.5.5
Accept: text/html, */*
Accept-Language: en-us,en;q=0.5
Accept-Encoding: gzip,deflate
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
Keep-Alive: 300
Connection: keep-alive
X-Requested-With: XMLHttpRequest
Referer: http://cxxx/admin/EditForm/field/ProdImage/upload
Content-Length: 0
Content-Type: text/plain; charset=UTF-8
Cookie: sifrFetch=true; PHPSESSID=88idm7ce5fa8ab7sqq3c9r66h6; PastMember=1
Pragma: no-cache
Cache-Control: no-cache

Date: Fri, 04 Dec 2009 13:44:11 GMT
Server: Apache/2.2.3 (CentOS)
X-Powered-By: PHP/5.2.11
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma: no-cache
Set-Cookie: PastMember=1; expires=Thu, 04-Mar-2010 13:44:11 GMT; path=/
Content-Length: 0
Connection: close
Content-Type: text/html; charset="utf-8"

When I click on the Response Tab its blank, but the Response Header gives me:

Date: Fri, 04 Dec 2009 15:19:14 GMT
Server: Apache/2.2.3 (CentOS)
X-Powered-By: PHP/5.2.11
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma: no-cache
Set-Cookie: PastMember=1; expires=Thu, 04-Mar-2010 15:19:15 GMT; path=/
Content-Length: 0
Connection: close
Content-Type: text/html; charset="utf-8"

When I open it in a new tab without the ajax and enable isDev it doesn't through an error other than the 500 server error in FireBug

Debug outputs the the following:

Debug (Director::handleRequest() in line 236 of Director.php)

* 50 =
o admin/security//$Action/$ID/$OtherID =

SecurityAdmin

o admin/reports//$Action/$ID =

ReportAdmin

o admin/comments//$Action =

CommentAdmin

o admin/assets//$Action/$ID =

AssetAdmin

o processes//$Action/$ID/$Batch =

BatchProcess_Controller

o admin/help//$Action/$ID =

CMSHelp

o admin/ReportField//$Action/$ID/$Type/$OtherID =

ReportField_Controller

o admin/bulkload//$Action/$ID/$OtherID =

BulkLoaderAdmin

o admin//ImageEditor/$Action =

ImageEditor

o admin/cms//$Action/$ID/$OtherID =

CMSMain

o PageComment//$Action/$ID =

PageComment_Controller

o dev/buildcache =

RebuildStaticCacheTask

* 40 =
o admin//$Action/$ID/$OtherID =

CMSMain

* 10 =
o swfuploadfile/$Action/$Class/$ID/$Field =

SWFUploadFileIFrameField_Uploader

o Security//$Action/$ID/$OtherID =

Security

o db//$Action =

DatabaseAdmin

o $Controller//$Action/$ID/$OtherID =

*

o images =

Image_Uploader

o =

RootURLController

o api/v1/live =

VersionedRestfulServer

o api/v1 =

RestfulServer

o soap/v1 =

SOAPModelAccess

o dev =

DevelopmentAdmin

o sitemap.xml =

GoogleSitemap

* 1 =
o $URLSegment//$Action/$ID/$OtherID =

ModelAsController

Okay debugging the request gives the following output...

Debug (line 110 of RequestHandler.php): Testing '$Action//$ID/$OtherID' with 'EditorToolbar/ImageForm' on CMSMain

Debug (line 116 of RequestHandler.php): Rule '$Action//$ID/$OtherID' matched to action 'handleAction' on CMSMain. Latest request params: array (
'Action' => 'EditorToolbar',
'ID' => 'ImageForm',
'OtherID' => NULL,
)

Debug (line 110 of RequestHandler.php): Testing '$Action' with 'ImageForm' on HtmlEditorField_Toolbar

Debug (line 116 of RequestHandler.php): Rule '$Action' matched to action '$Action' on HtmlEditorField_Toolbar. Latest request params: array (
'Action' => 'ImageForm',
)

Debug (line 110 of RequestHandler.php): Testing 'field/$FieldName!' with '' on Form

Debug (line 110 of RequestHandler.php): Testing '$Action!' with '' on Form

Debug (line 110 of RequestHandler.php): Testing 'POST ' with '' on Form

Debug (line 110 of RequestHandler.php): Testing 'GET ' with '' on Form

Debug (line 116 of RequestHandler.php): Rule 'GET ' matched to action 'httpSubmission' on Form. Latest request params: array (
'Action' => 'ImageForm',
)

So am I correct in assuming the problem is with ImageForm?