I would first try checking with the plugin author: @dfa3272008
You could also try contacting him via his forum: http://getpaidfrom.us/groups/buddypress-ajax-chat-support/forum/
yes I have visited the authors forum found no actual solution , approx 4 month ago somebody asked there the same question , and the answer from the author was as follows :
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Hi,
Sorry, if I answered this in another method. I can’t recall. But this looks like you either did one of two things:
1. Have a space at the end of your bp-chat/chat/config.php file or
2. You didn’t chmod 777 your bp-chat/config directory
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it didn’t worked for me ; firstly there is no config.php chat directory , its actialy is under chat/lib directory ………
and as I’m using it in localhost windows host the option 2. is not needed … but in case of option 1. there was no extra space in the lib/config.php , yet it didn’t worked….
I visited the authors profile here , but it seems the author in inactive for a certain time as its showing no recent activity .
this version of buddypressajaxchat is said to be working fine with wp 3.0 , but I have also tried it with wp 3.0, but again didn’t worked ……..
any solution would be much appreciated as I’m craving for this plugin as there no much self-hosted chat for buddypress…..
p.s. = Phpfreechat plugin – https://wordpress.org/extend/plugins/phpfreechat/ – is working very fine with the present version of wp and bp
The Wibiya bar chat is quite amazing as well…
Any news on this problem ? I’m having the same with WP 3.0.3 and BP 1.2.6 
The author site is down, sorry to post here.
well eevryone is i just posted as well…and im using all the latest updates both wordpress and BP
You might want to try out (ala Facebook chat) BP-Chat on beta by @sbrajesh http://buddydev.com/plugins/bp-chat/
I experienced the same issue on my local dev server, but once I enabled the plugin online it works fine.
I suspect the issue is down to which php modules are(n’t) enabled in my MAMP install, but are enabled on my host.
I think it happens only on local setup and specially when buddypress is accessed via http://localhost/… ? Is that correct ?
It does work on live servers and local machines having a vhost setup (http://www.WHATEVERYOUWANT.SOMETHING).
The plugin does not create cookies on local machine (comparing both phpinfo() outputs), is it related to cookies on localhost (http://stackoverflow.com/questions/1134290/cookies-on-localhost-with-explicit-domain) ?
Thanks for help.
Hi,
I didn’t realize this was a problem. I’ll go patch it today. Easy fix. Please friend me or something if there’s a problem. I didn’t see this one until someone on the wordpress forum pinged me. I’m happy to fix stuff, just need to know 
Thanks,
Dave
Thanks for looking at it @Dfa327, I remembered you writing somewhere you prefer we report bugs somewhere else but I could not sign up at the time I have tried.
Is the fix suppose to be in 1.3.6 version of the plugin ? If so, I report the problem still occurs.
Thanks for letting us know when you will fix it,
flips
hi
i installed the plugin in local computer according to the readme file with the downloaded file
it did show a chat tag on the admin-bar when i clicked it
got a blank page.
anyone have the same problem as me?
thanks
rocky
Hi @rockyteng, we are talking about this issue here… be welcome 
I guess this topic is closed thanks to Dave, please see [Plugin: Buddypress-Ajax-Chat] Plugin not working : Fatal error for more information.
thanks flips for your reply.
it helps!
Rocky
