When I click the EZproxy link I am getting the EZproxy menu page
Verify the correct URL for the target. Add the target URL to the EZproxy prefix and repost the link. If the target URL is encoded change the EZproxy prefix to use qurl= instead of url= .
EZproxy will display the menu page when it does not know where the target URL is telling it to go. Often this is caused by an Invalid value being presented to EZproxy as a URL