Unhandled Error!

Trying to get property of non-object

Document	shop:product
Document type	CMS partial
Line	78
Exception class	Cms_ExecutionException

Code Highlight

						<div class="description bullet price col-sm-12">					
						<p><?php echo $product->short_description; ?></p>
						</div>
					</div>
					<?php endif; ?>
 
					<?php if(date('H') <= 12 && in_array($product->manufacturer->name,
								array('Prosolve', 'Grassline'))): ?>
						<div class="availability">
							<span>Same-Day Dispatch (order before 2pm Mon-Fri)</span>
						</div>
					<?php endif; ?>

#	Document	Type
2	shop:product	CMS partial
1	Product	CMS page