Installed modules suddenly missing from front of store

Ok, so it's opencart version 1.5.4.

I have quite a few modules installed, but suddenly yesterday the following modules, although still installed in the admin, aren't visible in the front end of the store:

Slideshow
Featured
Tweetbook

I had been working on making the default category product layout to be grid by changing the following code in the tpl category list file to display grid not list but I cant see how that would affect the other modules:

Code: Select all
view = $.cookie('display');

if (view) {
display(view);
} else {
display('list');
}

The other thing is my child was playing on cbeebies while the backend tab was still up. It's possible he touched something although very unlikely. Any help to get the site back to normal would be greatly appreciated! Any ideas?

See the website here: http://www.art4chimps.com
and see my blank home page

Do you have PHP Error Reporting set to true?

I believe so, my index.php file starts like this:

<?php
error_reporting(E_ALL);
ini_set('display_errors', 'On');

My error log since friday looks like this:

2013-02-22 12:00:35 - PHP Notice: Undefined variable: cr2gridenabler_mode in /home/jocle140/public_html/admin/view/template/module/cr2gridenabler.tpl on line 38
2013-02-22 12:00:35 - PHP Notice: Undefined variable: cr2gridenabler_selector in /home/jocle140/public_html/admin/view/template/module/cr2gridenabler.tpl on line 60
2013-02-22 12:00:35 - PHP Notice: Undefined variable: iters in /home/jocle140/public_html/admin/view/template/module/cr2gridenabler.tpl on line 133
2013-02-22 12:00:55 - PHP Notice: unserialize() [<a href='function.unserialize'>function.unserialize</a>]: Error at offset 23155 of 24576 bytes in /home/jocle140/public_html/system/library/cache.php on line 11
2013-02-22 21:44:50 - PHP Notice: Undefined variable: cr2gridenabler_status in /home/jocle140/public_html/admin/view/template/module/cr2gridenabler.tpl on line 26
2013-02-22 21:44:50 - PHP Notice: Undefined variable: cr2gridenabler_mode in /home/jocle140/public_html/admin/view/template/module/cr2gridenabler.tpl on line 38
2013-02-22 21:44:50 - PHP Notice: Undefined variable: cr2gridenabler_selector in /home/jocle140/public_html/admin/view/template/module/cr2gridenabler.tpl on line 60
2013-02-22 21:44:50 - PHP Notice: Undefined variable: iters in /home/jocle140/public_html/admin/view/template/module/cr2gridenabler.tpl on line 133
2013-02-23 20:46:10 - PHP Notice: Undefined variable: cr2gridenabler_mode in /home/jocle140/public_html/admin/view/template/module/cr2gridenabler.tpl on line 38
2013-02-23 20:46:10 - PHP Notice: Undefined variable: cr2gridenabler_selector in /home/jocle140/public_html/admin/view/template/module/cr2gridenabler.tpl on line 60
2013-02-23 20:46:10 - PHP Notice: Undefined variable: iters in /home/jocle140/public_html/admin/view/template/module/cr2gridenabler.tpl on line 133
2013-02-24 21:07:32 - PP_STANDARD :: IPN REQUEST: cmd=_notify-validate&mc_gross=54.99&invoice=33+-+Pam+Volpert&protection_eligibility=Eligible&address_status=confirmed&item_number1=cyo13&tax=0.00&item_number2=&payer_id=Z6QL3BVZVBPY6&address_street=Villa+Mon+Contour%0D%0ARue+de+Fliquet&payment_date=13%3A06%3A49+Feb+24%2C+2013+PST&option_name2_1=Please+tell+us+the+personal+details+you+would+like+on+the+side+o&option_selection1_1=8%22x18%22&payment_status=Completed&option_selection3_1=Sky+Blue&charset=UTF-8&address_zip=JE3+6BP&mc_shipping=0.00&mc_handling=0.00&first_name=curt&mc_fee=2.34&address_country_code=GB&address_name=Pam+Volpert¬ify_version=3.7&custom=wqTFSMek52TasrtohgdYEtkI7tQDrIQgaw0Ftyi4H30%2C&payer_status=verified&business=design%40art4chimps.com&address_country=United+Kingdom&num_cart_items=2&mc_handling1=0.00&mc_handling2=0.00&address_city=St.+Martin%2C+Jersey&verify_sign=AQEgFLG-gYJRPNwVRAb4gD.Dx6t9ANpSkm5lendV.mMb0wSO8axDizES&payer_email=curtvolpert%40hotmail.co.uk&mc_shipping1=0.00&mc_shipping2=0.00&tax1=0.00&tax2=0.00&option_name1_1=Size&option_name3_1=Please+select+the+colour+you+would+like&txn_id=4SB15941VU941933G&payment_type=instant&option_selection2_1=35+Third+Ave%0D%0AParktow..&last_name=Volpert&address_state=&item_name1=Personalised+Sunshine+Lollipops+Bus+Blind&receiver_email=design%40art4chimps.com&item_name2=Shipping%2C+Handling%2C+Discounts+%26+Taxes&payment_fee=&quantity1=1&quantity2=1&receiver_id=2PB4XCBTUKURQ&txn_type=cart&mc_gross_1=49.99&mc_currency=GBP&mc_gross_2=5.00&residence_country=IE&transaction_subject=wqTFSMek52TasrtohgdYEtkI7tQDrIQgaw0Ftyi4H30%2C&payment_gross=&ipn_track_id=dd1f1781ecee1
2013-02-24 21:07:32 - PP_STANDARD :: IPN RESPONSE: VERIFIED

I have removed cr2 grid enabler as it wasn't required and didnt work for me anyway. That module has error messages prior anyway. Any ideas?

I have realised that all my modules are not functionning....

I replaced my admin catalog vqmod and system files from a back up but no change. Could this be in settings as there's no error? All modules are active in backend...