We have a problem with Paypal in our Magento installation (ver. 126.96.36.199). The Magento backend all works except for the Paypal tab in the System > Configuration settings. When you click on this tab the screen goes blank. Paypal also does not work for users of the site when making payments.
This has been identified by another developer as a database problem.
We are looking for someone who can quickly fix this problem.