CB Antispam Error 500 - No more access to Administration !

Hi
I just installed CB Antispam.
I have enabled the CB antispam .
Also, I went into Joomla>Extensions>Plug-ins and I published the "Captcha - CB AntiSpam" plug-in too.
Obviously, this was a mistake.
Since then I can not access anymore to any links of the Joomla Administration (Configuration, Menu, Module, plug-ins, ..... everything).
All I can access is the home page of the administration and also the CB menus.
Please help : how can I unpublish the "Captcha - CB AntiSpam" plug-in without having access to it ?
thanks

I managed to unpublish the plugin with this second method : www.ostraining.com/blog/joomla/disable-a-joomla-plugin/

Don't see how publishing the Joomla plugin blocks access to backend menu structures as it's just a Joomla captcha plugin. I'm not able to confirm your issue here. Do you have the actual 500 error it was throwing? if not is it in your server error logs? Was CB AntiSpam within CB > Plugin Management unpublished at the time?

CB AntiSpam within CB > Plugin Management was published at the same time.
I don't know what happened but obviously it came from that as unpublishing the Joomla>Extensions>Plug-ins>Captcha - CB AntiSpam solved it.

What Captcha mode did you set CB AntiSpam to? If you set it to Joomla then within Joomla global configuration you set Default Captcha to CB AntiSpam that'd create an infinite loop. I still can't see how that'd cause any issues with backend as it's simply not loaded there. Not sure what to suggest as am unable to confirm. Ensure CB, CB AntiSpam, and Joomla are all up to date I suppose. You don't need the Joomla plugin for CB AntiSpam though unless you want to use CB AntiSpam captcha on Joomla forms or 3rd party extensions.