Cannot Import Products | Slider Not Working | Cannot see Custom Fields

My website: https://www.thefriendlyswede.com/

Hi all,

Hope someone could help me put the site into order, if possible ASAP.
I have updated to the newest WordPress version which is 3.6, and have also uploaded the new ShopperPress Theme version 7.1.4

But as of late I have been having the following problems:

1) Cannot Import Products
I always get the below error:

Warning: file_get_contents(https://ecs.amazonaws.com/onca/xml?AWSAccessKeyId=AKIAIT2GSUXJ64TXNXSA&AssociateTag=wwwthefrien0f-20&Brand=&Condition=All&ItemPage=1&Keywords=shoes&MaximumPrice=&MinimumPrice=&Operation=ItemSearch&ResponseGroup=ItemAttributes%2COffers%2CImages%2CEditorialReview%2CReviews&SearchIndex=All&Service=AWSECommerceService&Timestamp=2013-09-22T05%3A06%3A37Z&Version=2011-08-01&Signature=34IB8hnyZ2CQOCAZi4ET6wvuvaJ4iMPjkEu7xpdBXYI%3D) [function.file-get-contents]: failed to open stream: HTTP request failed! HTTP/1.1 403 Forbidden in /home1/theswede/public_html/wp-content/themes/shopperpress/PPT/func/funcs_premiumpress.php on line 1660
Could not connect to Amazon

Please advice how can I fix whatever is in the line 1660 of the files. I have not edited that php file whatsoever before.

2) Slider on homepage isn’t working
Both the upper slider (you can see two images there not in a ‘slider’ layout/function) and the lower slider (which won’t ‘slide’ even if you click the arrows; I have set it to show 50 products but nothing happens)

3) Cannot see Custom Fields
When trying to edit an existing product, I cannot seem to access the Custom Fields area. Clicking ‘Screen Options’ also doesn’t toggle to show the items.