Magento - Can't save any new products in the back end of the store

Avg Bid (USD)
Project Budget (USD)
$30 - $250

Project Description:
Can't save any new products in the back end of the store. I get the message: Fatal error: Call to a member function getId() on a non-object in /home5/rockbott/public_html/app/code/core/Mage/Adminhtml/controllers/Catalog/ProductController.php on line 578 . I'm only trying to save simple product and get this message. Line 578 is as follows: $product->setWebsiteIds(array(Mage::app()->getStore(true)->getWebsite()->getId())); I cleared system.log file (someones suggestion) but I'm attaching the newest one (small) and also attaching latest reports.

Skills required:
Magento, MySQL, PHP, Website Design, Website Management
Additional Files: system.log 7810315105463.txt 7221367699951.txt 7256895810233.txt 1121850037249.txt 396264551617.txt 874514669007.txt 937370160983.txt
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