Filterable Gallery link does not work

Hi everyone,
I´ve tried to set a link at
EA Filterable Gallery-> Gallery Item Settings -> Gallery link? (Yes) -> link implemented (http://www.jenniferholst.com/workshop-sonnensystem-17-nov-14-1730-cake-bake-germany-offenbach/)

But link does not work if I want to open it with picture lightbox, it switches only to the page again:
http://www.jenniferholst.com/termine-neu/

How can I solve the problem? Is an update planned to fix the error?

Greetings
Jenny

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