Blank white screen on front page vm2

[ianhard]

hi there, this has been doing my head in!!   i have been through the forum and can't find a solution.  when you go to the page that has Frontpage assigned it just goes to a blank white screen. (there is nothing in the page source.)  when I turn shop off,  it works and shows that it's offline for maintainance.  When i try the category option from the menu selection,  it works if I assign an individual category,  but not if I want to show all categories.  here is the page in question.  http://gworldproductions.com.au/cerra/products

Cheers in advance

VM version =  2.0.26a
Joomla Version = Joomla! 2.5.17 Stable
php version=     5.3.27

[jenkinhill]

Check your error log. http://forum.virtuemart.net/index.php?topic=62675.0

[John2400]

Yep happened a few time to me. Change the template back to a standard one.

[ianhard]

I installed a new joomla, did everything from scratch.  It was all working,  then I changed the catalogue on setting.  then everything went blank again. 

[jenkinhill]

And what is showing in the error log?

[ianhard]

Sorry for my super delay.  Everything was good, now I get this Bug message.  any idea how to fix this? " Fatal error: Class 'vmRequest' not found in /home/gworscom/public_html/cerra/plugins/vmcustom/specification/specification.php on line 98 "

Virtuemart 2.6.6
Joomla 2.5.20
PHP 5.3.28

[ianhard]

http://forum.virtuemart.net/index.php?topic=123873.0;topicseen

this seemed to fix the problem