[SOLVED] OC 2.1.0.1 - Blank screen on front end

for some reason when i go to my site it has a blank screen.

nothing new added. just a blank screen.

the admin still work fine.

how do i find out whats causing this?

site is: https://shop.disifin.co.uk

thank you

Check your error log for clues

silly question, where are they? its switched on in admin. the VQMod Logs are fine.

i checked in tools but get this:

so i found the log file and it has the following: (Not sure what this means, any advise?)

2016-08-16 12:47:16 - PHP Notice: Undefined variable: analytics in /home/disifin/web/shop.disifin.co.uk/public_html/vqmod/vqcache/vq2-catalog_view_theme_default_template_common_header.tpl on line 45
2016-08-16 12:47:16 - PHP Warning: Invalid argument supplied for foreach() in /home/disifin/web/shop.disifin.co.uk/public_html/vqmod/vqcache/vq2-catalog_view_theme_default_template_common_header.tpl on line 45
2016-08-16 12:49:46 - PHP Notice: Trying to get property of non-object in /home/disifin/web/shop.disifin.co.uk/public_html/admin/controller/extension/modification.php on line 442
2016-08-16 12:49:46 - PHP Unknown: Object of class DOMElement could not be converted to string in /home/disifin/web/shop.disifin.co.uk/public_html/admin/controller/extension/modification.php on line 99
2016-08-16 12:55:20 - PHP Notice: Trying to get property of non-object in /home/disifin/web/shop.disifin.co.uk/public_html/admin/controller/extension/modification.php on line 442
2016-08-16 12:55:21 - PHP Unknown: Object of class DOMElement could not be converted to string in /home/disifin/web/shop.disifin.co.uk/public_html/admin/controller/extension/modification.php on line 99

ok. so.. after searching google i found the following useful post!

http://forum.opencart.com/viewtopic.php?f=144&t=50555

now the error i have on the homepage is this:


Fatal error: Cannot redeclare ControllerCommonSeoUrl::slugify() in /home/disifin/web/shop.disifin.co.uk/public_html/vqmod/vqcache/vq2-system_storage_modification_catalog_controller_common_seo_url.php on line 115


what does this mean please?

greatly appreciated.

also (again sorry for not spotting earlier).

in the admin section, when i navigate to an order i get the following pop up message:

Most of them look like extension/mod errors.

I would disable your mods one by one, refreshing the cache and vqmod/vqcache each time until the error disappears.

Then you will know which mods is causing trouble

cyclops12 wrote:Most of them look like extension/mod errors.

I would disable your mods one by one, refreshing the cache and vqmod/vqcache each time until the error disappears.

Then you will know which mods is causing trouble

thank you.

so disabling all VQMods, i get the following error now:

Fatal error: Class 'controllercommon' not found in /home/disifin/web/shop.disifin.co.uk/public_html/vqmod/vqcache/vq2-system_storage_modification_system_engine_loader.php on line 28

Have you completely cleared the vqmod/vqcache folder ?

yup.

i then refresh the homepage, the files regenerate but the error is still there.

could you post that file here

error is:

Fatal error: Class 'controllercommon' not found in /home/disifin/web/shop.disifin.co.uk/public_html/vqmod/vqcache/vq2-system_engine_loader.php on line 28

file is here (hope this works!)

The only main difference i can see in that file is on line 17 you have and in the default file it is Maybe try either editing that file n your cpanel or edit it with notepad or similar and upload it to the vqcache folder and see if that makes any difference.

Dont refresh in extension/modifications once you have uploaded it incase it gets changed back again, just refresh your browser and see what happens

so now the error has slightly changed to:

Fatal error: Class 'Controllercommon' not found in /home/disifin/web/shop.disifin.co.uk/public_html/vqmod/vqcache/vq2-system_engine_loader.php on line 28

Silly question but i suppose you still have a folder called "common" in catalog/controller ??

cyclops12 wrote:Silly question but i suppose you still have a folder called "common" in catalog/controller ??

i do yes.

Has you installed vqmod lately or has it been there for a while ??
It is definately to do with the vqmod.

Perhaps save your vqmod/xml folder or rename it and remove vqmod completely to see it that gets rid of the errors.
I would download all the xml files you have in vqmod/xml folder to your pc so you can always upload them again afterwards.

Unless someone else has any ideas i cant think of anything else

so,

with VQMods removed from the XML directory (but the vqmod_opencart.xml file still in vqmod/xml folder) i get the following error:

Fatal error: Class 'controllercommon' not found in /home/disifin/web/shop.disifin.co.uk/public_html/vqmod/vqcache/vq2-system_storage_modification_system_engine_loader.php on line 28

with VQMods removed from the XML directory (and the vqmod_opencart.xml file removed from vqmod/xml folder) i get the following error:

Warning: Invalid argument supplied for foreach() in /home/disifin/web/shop.disifin.co.uk/public_html/vqmod/vqmod.php on line 224

Fatal error: Class 'controllercommon' not found in /home/disifin/web/shop.disifin.co.uk/public_html/system/ storage/modification/system/engine/loader.php on line 28

The storage/modification folder holds all the ocmods you have installed.
What ocmods have you installed, have you tried disabling them one at a time and refreshing to see if the error goes away?
Clear all logs first then try otherwise you may be looking at an old error