Problem: When you browse to the Plugin Manager section under Admin, the resulting page is blank.

Cause: The most probable cause for this behavior is that one of the Plugins you have installed has a PHP parse error when it is run.  The Plugin Manager actually accesses each installed Plugin and reads content from it, so if one of the Plugins has a parse error that will stop the process.

You may also experience this if one or more of your Plugin files do not have sufficient file permissions to be “readable”.  Typically, permissions of 644 or 755 should be sufficient.