Errors - site is down, white screen

I'm having issues with this component. Was working fine earlier, to an extent, now I get only a white screen. I can enable each piece and the site works fine until I enable JFBCLogin module -- at that point the site does not function, only a white screen is returned. I also noticed that in the component configuration the JomSocial settings are unavailable. Which is fine, as I do not use JomSocial, I use CB. But if I try to go to that tab I receive the following:


500 - An error has occurred.

JDatabaseMySQL::query: 1146 - Table 'presenu0_VOFL.jos_community_fields' doesn't exist SQL=SELECT * FROM jos_community_fields WHERE type="text" OR type="textarea"

Call stack
# Function Location
1 JAdministrator->dispatch() /home5/administrator/index.php:67
2 JComponentHelper->renderComponent() /home5/administrator/includes/application.php:136
3 require_once() /home5/libraries/joomla/application/component/helper.php:162
4 JController->execute() /home5/administrator/components/com_jfbconnect/admin.jfbconnect.php:16
5 JFBConnectControllerJomsocial->display() /home5/libraries/joomla/application/component/controller.php:236
6 JFBConnectViewJomSocial->display() /home5/administrator/components/com_jfbconnect/controllers/jomsocial.php:26
7 JView->display() /home5/administrator/components/com_jfbconnect/views/jomsocial/view.html.php:14
8 JView->loadTemplate() /home5/libraries/joomla/application/component/view.php:192
9 include() /home5/libraries/joomla/application/component/view.php:564
10 JFBConnectModelConfig->getJsFields() /home5/administrator/components/com_jfbconnect/views/jomsocial/tmpl/default.php:50
11 JDatabaseMySQL->loadObjectList() /home5/administrator/components/com_jfbconnect/models/config.php:184
12 JDatabaseMySQL->query() /home5/libraries/joomla/database/database/mysql.php:458
13 JError->raiseError() /home5/libraries/joomla/database/database/mysql.php:231
14 JError->raise() /home5/libraries/joomla/error/error.php:171
15 JException->__construct() /home5/libraries/joomla/error/error.php:136

My PHP error log follows:

[09-Jun-2009 18:16:58] PHP Notice: Undefined index: fbFieldMap in /home5/administrator/components/com_jfbconnect/models/config.php on line 167
[09-Jun-2009 18:17:13] PHP Notice: Undefined index: fbFieldMap in /home5/administrator/components/com_jfbconnect/models/config.php on line 167
[09-Jun-2009 18:17:29] PHP Notice: Undefined index: new_username_format in /home5/administrator/components/com_jfbconnect/models/config.php on line 167
[09-Jun-2009 18:17:41] PHP Notice: Undefined index: fbFieldMap in /home5/administrator/components/com_jfbconnect/models/config.php on line 167
[09-Jun-2009 18:17:43] PHP Notice: Undefined index: new_username_format in /home5/administrator/components/com_jfbconnect/models/config.php on line 167
[09-Jun-2009 18:17:45] PHP Notice: Undefined index: fbFieldMap in /home5/administrator/components/com_jfbconnect/models/config.php on line 167
[09-Jun-2009 18:21:01] PHP Notice: Undefined index: new_username_format in /home5/administrator/components/com_jfbconnect/models/config.php on line 167
[09-Jun-2009 18:30:00] PHP Notice: Undefined index: new_username_format in /home5/administrator/components/com_jfbconnect/models/config.php on line 167
[09-Jun-2009 18:30:07] PHP Notice: Undefined index: fbFieldMap in /home5/administrator/components/com_jfbconnect/models/config.php on line 167
[09-Jun-2009 18:30:36] PHP Notice: Undefined index: new_username_format in /home5/administrator/components/com_jfbconnect/models/config.php on line 167
[09-Jun-2009 18:30:48] PHP Notice: Undefined index: new_username_format in /home5/administrator/components/com_jfbconnect/models/config.php on line 167
[09-Jun-2009 18:37:32] PHP Notice: Undefined index: new_username_format in /home5/administrator/components/com_jfbconnect/models/config.php on line 167
[09-Jun-2009 18:37:47] PHP Notice: Undefined index: fbFieldMap in /home5/administrator/components/com_jfbconnect/models/config.php on line 167
[09-Jun-2009 18:38:18] PHP Notice: Undefined index: fbFieldMap in /home5/administrator/components/com_jfbconnect/models/config.php on line 167

Any suggestions on how to resolve this?

I have error reporting on -- nothing appears. When I "view source" of the displayed page the code is entirely blank. This problem is caused by the JFBCLogin module -- if it is turned on I receive a white page, if it is off then everything is fine. I feel like it is attempting to query JomSocial database tables which of course do not exist. Is there a way to completely un-install then re-install from the beginning? I believe somehow the configuration has been damaged.

JomSocial had previously been installed on the system but was uninstalled prior to installing JFBConnect.

I've uninstalled JFBC completely, component, module, and plugins -- reinstalled and so far things are working again.

thanks!