Chris Bouveret 
Has successfully completed the online course Introduction
Has successfully completed the online course Intermediate (200)
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Has successfully completed the online course Basics (100)
Has successfully completed the online course Advanced (320)
Has successfully completed the Intermediate Certification
Has successfully completed the Advanced CertificationHi there,
i tried to reporduce the error you described on our development instance with no success. When i test it on your Freemium Instance i can see the error though. We are looking into this and will get back to you. My best guess is that the ObjectPage Widget might be broken on your freemium Instance. When i deactivate the showAnchorBar property the error is gone. 
Best Regards