I have updated to Zotero 2.1.6 and upon prompting updated my document. The style has had to be changed as my old customised style was no longer acceptable. ( error this.style is undefined). I had to replace one reference as it considered it to be no longer in the database. Upon adding new references ( which seems ok) the error message

COMMAND app (u'/Applications/Microsoft Office 2004/Microsoft Word').active_document.fields[243].result.range.font_object.color_index.set (aem.AEEnum('\x01\xfd\x96\x7f')) - all typed but hopefully no typo.

I have sent in an associated debug report D1368962360.

Any suggestions? Thanks.