The xwiki edit page is blank

Hi @mflorea
I have cloned the machine and upgraded to 16.10.14 run the wizard and stuff. flavor is updated with keeping new files etc. now the new version is install on clone.

I still get this edit problem. only on firefox. chrome is fine so as edge.
i got another error which i posted in this post Can't access property "language",A.document is undefined this problem is on chrome and firefox too. this is after I upgraded to newer version.

I would really appreciate the help to resolve those issues.
Thanks