i get this warning thing everytime i try to access my checkout.

[Warning] DataObjectSet::__construct: Passed item #0 is not an object or associative array, can't be properly iterated on in templates
GET /SilverStripe-v2.2.3/checkout

Line 82 in /home/.leif/acronum/acronum.com/SilverStripe-v2.2.3/sapphire/core/model/DataObjectSet.php
Source

73             if(is_subclass_of($item, 'ViewableData')) {
74                $this->items[$i] = $item;
75             } elseif(is_object($item) || ArrayLib::is_associative($item)) {
76                $this->items[$i] = new ArrayData($item);
77             } else {
78                user_error(
79                   "DataObjectSet::__construct: Passed item #{$i} is not an object or associative array,
80                   can't be properly iterated on in templates",
81                   E_USER_WARNING
82                );                  
83                $this->items[$i] = $item;
84             }
85          }
86
87          
88       }

Trace

* DataObjectSet::__construct: Passed item #0 is not an object or associative array, can't be properly iterated on in templates
Line 82 of DataObjectSet.php
* DataObjectSet->__construct(Array)
Line 33 of FieldSet.php
* FieldSet->__construct(Array)
Line 38 of CompositeField.php
* CompositeField->__construct()
Line 135 of Payment.php
* Payment::combined_form_fields($5.00 USD,0)
Line 118 of OrderForm.php
* OrderForm->__construct(CheckoutPage_Controller,OrderForm)
Line 253 of CheckoutPage.php
* CheckoutPage_Controller->OrderForm()
* call_user_func_array(Array,Array)
Line 409 of ViewableData.php
* ViewableData->XML_val(OrderForm,,1)
Line 285 of .cache.home..leif.acronum.acronum.com.SilverStripe-v2.2.3.themes.redbusiness_ecommerce.templates.Layout.CheckoutPage.ss
* include(/usr/local/tmp/silverstripe-cache-home-acronum-acronum.com-SilverStripe-v2.2.3/.cache.home..leif.acronum.acronum.com.SilverStripe-v2.2.3.themes.redbusiness_ecommerce.templates.Layout.CheckoutPage.ss)
Line 354 of SSViewer.php
* SSViewer->process(CheckoutPage_Controller)
Line 346 of SSViewer.php
* SSViewer->process(CheckoutPage_Controller)
Line 175 of Controller.php
* Controller->handleAction(HTTPRequest)
Line 107 of RequestHandler.php
* RequestHandler->handleRequest(HTTPRequest)
Line 122 of Controller.php
* Controller->handleRequest(HTTPRequest)
Line 28 of ModelAsController.php
* ModelAsController->handleRequest(HTTPRequest)
Line 277 of Director.php
* Director::handleRequest(HTTPRequest,Session)
Line 121 of Director.php
* Director::direct(/checkout)
Line 115 of main.php

i need it fixed asap if i could please have some help with this.

http://acronum.com/SilverStripe-v2.2.3/checkout