Blank page is the same as getting the 500 Internal Server Error. This always points to error that <strong>must</strong> be logged on your server. You need to check your server error log to find out what the error is: Getting PHP errors from the server.
This is a common server related issue and it means that your server is not giving enough memory for executing PHP script. This can be solved by increasing PHP Memory limit.
In some cases, server doesn’t allow setting memory limit over a preset hard limit, and such limitation can cause problems with some plugins that need more memory for some operations. In that case, you must contact your hosting provider for expanding the limit, or change host.