groups are not displaying.. going to blank page 71

everything seems in order so far. BUT the groups display the main page.. but when you click on a group it goes to a blank page..

this is unacceptable.. how do fix it?

It maybe there is some error, try to check for the exact error string in webserver and php error logs.

problem solved.... i used the update from 709 to 71. it did not work.

i took the original d7.1 code and over wrote everything on the website.

now it works.