500 internal error, could it be caused by MODx?

My client site is running properly and everything shows up just fine, however when I try to run the markup validation, the following validation service sites are showing HTTP Transfer Error - 151: 500 Internal Server Error.

http://validator.w3.org/
http://www.contentquality.com/
http://www.totalvalidator.com/validator/ValidatorForm

The site in question is marinersq.com. Previous update which was two months ago, I didn’t encounter this problem. Web host has no clue what is causing it and suggested me to look into the code/software, and I run out of idea what might be causing the HTTP transfer error.

Hoping someone here more knowledgeable may know the cause - MODx or non-MODx related.

TIA.

Are you using the searchhiglight plugin in an older modx install?
That plugin used to miss a _ ; _

Hi mrhaw, thanks for the quick response.

No, I don’t use searchhiglight plugin. But you have given me a clue to look into BreadCrumbs snippet which I re-enabled it just two days ago when I did the site maintenance. The  BreadCrumbs snippet was first installed when the site launched, couple months ago I upgraded to v9.6.3, didn’t realize Breadcrumb was gone until this Monday.

Will report back.

update: Breadcrumbs snippet is not a problem!

I had a similar problem a while back with the FileDownload Plugin.

Generally speaking, I would suggest checking all your plugins by disabling them individually and then trying those w3c links again.

Taff

I’m having the same problem with the www.Hip-HopBase.com

I completely redesigned the site and it validates perfectly via direct input.

P.S. and Google Webmasters doesn’t recognize the site either :’(

Are you running any plugins Mproject?

yeah....

QuickEdit
Image TV Preview 1.2.0.4
Search Highlighting 1.3
setlocaleHR
TinyMCE 3.2.0.1

Disable search highlight and i bet it goes away. I think there’s a fix for that somewhere.

Thanks Taff and Ryan.

I have FileDownload installed, will look into it.

Quote from: rthrash at Apr 09, 2009, 07:36 AM

Disable search highlight and i bet it goes away. I think there’s a fix for that somewhere.

Nope, still getting the error 


EDIT: I disabled all the plugins and it worked. So... the problem is definetly in some plugins... will look into it...