Prestashop website transfer to new server needs fixing!

General information for the website: SAC Games
Description of requirements/features: I have transferred a prestashop website for a new client onto my server. However I am having some problems with debugging errors that I believe are due to the prestashop version with my version of PHP.

Errors that need fixing:
In the Administration Area:

1. Warning: file_exists(): open_basedir restriction in effect.File(/modules//googlebase.php/googlebase.php.php) is not within the allowed path(s): (/:/tmp/) in /classes/Module.php on line 348 Warning: file_exists(): open_basedir restriction in effect. File(/modules//index.php/index.php.php) is not within the allowed path(s): (//:/tmp/) in /classes/Module.php on line 348

2.Fatal error: Incompatible file format: The encoded file has format major ID 1, whereas the Loader expects 4 in /modules/fastlanecheckout/decoder.php on line 0
Here I have had Zend Optimizer installed on my server to deal with the Fast Lane Checkout module but it still seems to be incompatible, and the module authors are out of action at the moment so aren't answering any support queries...

In front-end website:
1. Notice: Undefined variable: cookie in /modules/blockrss2/blockrss2.php on line 49 Notice: Trying to get property of non-object in in /modules/blockrss2/blockrss2.php on line 49

I don't have the budget to update the prestashop version (1.2) as this would mean redesigning the front end website as the theme isn't compatible with the new versions of prestashop so I really just need this one fixing!

There may be follow on work for the successful candidate. And it is an urgent job so please bear this in mind if you would like to apply.

You will get full FTP access to the site, in addition to the administration area logins for the site.

Thank you!
Extra notes: