Why did Bibbase start showing a big arrow on WordPress pages?

I'm wondering if anyone can help me with this display problem.  I have been using Bibbase just fine for multiple years through my university wordpress.com service.  But recently, it just started displaying erroneously with all the links not working.  It's now showing a big arrow coming out of a square. 

Here is the webpage:

Publications – Chitambar Quantum Information Group

Does anyone know how to fix this?

Thanks!