Word plug-in does not work anymore

Hi, my Word plug-in does not work anymore. When trying to add a reference it gives: "Error: JavaScript error found: CSL error: Exception: ReferenceError: Can't find variable: abbreviations, 554, file:///Q:/A30056_Mendeley_192.000/Mendeley%20Desktop/citeproc-js/citeproc.js" This is on an institutional university computer but it seems to be no general problem but specific to my account. What can I do? I had edited some styles some time ago. But I remember it to have worked afterwards...Version is 1.10.3 Thanks a lot! Chris