I tried to add this post to another but now it looks like all the responses are to my post which they are not. I am therefore creating a new post and this one can be deleted. I apologize for this but don't understand how all these older responses got attached to my post

I just upgraded to CB 1.8, cbgallery, cbfbc, cbprofile book and cbtwc (2.5), mod_cbgroupjive_J17 (since I'm using Joomla_1.7). I tried to update every int, mod & plugin that was available for groupjive - but only ran into problem with the jivefile. When I tried to install the int_cbgroupjivefile_25 I received the following error:
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Not Acceptable

An appropriate representation of the requested resource /j16/administrator/index.php could not be found on this server.

Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.
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after finishing all the installs (over the previous versions) I was able to go to my profile from front end and see the groups I had previously created. When I went to click on any of them to open, I then received this error:

Fatal error: Call to a member function get() on a non-object in <span>/</span>home<span>/</span>xxx/public_html/components/com_comprofiler/plugin/user/plug_cbgroupjive/plugins/cbgroupjivefile/cbgroupjivefile.php on line 41

is there any fix for this - looks like others have having similar problems with install of this file.