I'm getting this error in the apache2's logs:

(...)
[Tue Aug 09 14:09:02 2011] [error] [client 88.xx.xx.xx] PHP Notice: Constant _UE_USERNAME_OR_EMAIL already defined in /home/user/joomla16/components/com_comprofiler/plugin/language/spanish/spanish.php on line 1159, referer: 88.xx.xx.xx:81/j16/index.php/using-joomla/extensions/components
[Tue Aug 09 14:09:02 2011] [error] [client 88.xx.xx.xx] PHP Stack trace:, referer: 88.xx.xx.xx:81/j16/index.php/using-joomla/extensions/components
[Tue Aug 09 14:09:02 2011] [error] [client 88.xx.xx.xx] PHP 1. {main}() /home/user/joomla16/index.php:0, referer: 88.xx.xx.xx:81/j16/index.php/using-joomla/extensions/components
[Tue Aug 09 14:09:02 2011] [error] [client 88.xx.xx.xx] PHP 2. JSite->render() /home/user/joomla16/index.php:49, referer: 88.xx.xx.xx:81/j16/index.php/using-joomla/extensions/components
[Tue Aug 09 14:09:02 2011] [error] [client 88.xx.xx.xx] PHP 3. JDocumentHTML->parse() /home/user/joomla16/includes/application.php:250, referer: 88.xx.xx.xx:81/j16/index.php/using-joomla/extensions/components
[Tue Aug 09 14:09:02 2011] [error] [client 88.xx.xx.xx] PHP 4. JDocumentHTML->_fetchTemplate() /home/user/joomla16/plugins/system/jat3/jat3/core/joomla/documenthtml.php:313, referer: 88.xx.xx.xx:81/j16/index.php/using-joomla/extensions/components
[Tue Aug 09 14:09:02 2011] [error] [client 88.xx.xx.xx] PHP 5. JDocumentHTML->_loadTemplate() /home/user/joomla16/plugins/system/jat3/jat3/core/joomla/documenthtml.php:467, referer: 88.xx.xx.xx:81/j16/index.php/using-joomla/extensions/components
[Tue Aug 09 14:09:02 2011] [error] [client 88.xx.xx.xx] PHP 6. require() /home/user/joomla16/plugins/system/jat3/jat3/core/joomla/documenthtml.php:412, referer: 88.xx.xx.xx:81/j16/index.php/using-joomla/extensions/components
[Tue Aug 09 14:09:02 2011] [error] [client 88.xx.xx.xx] PHP 7. T3Template->render() /home/user/joomla16/templates/ja_purity_ii/index.php:15, referer: 88.xx.xx.xx:81/j16/index.php/using-joomla/extensions/components
[Tue Aug 09 14:09:02 2011] [error] [client 88.xx.xx.xx] PHP 8. T3Template->getBuffer() /home/user/joomla16/plugins/system/jat3/jat3/core/template.php:492, referer: 88.xx.xx.xx:81/j16/index.php/using-joomla/extensions/components
[Tue Aug 09 14:09:02 2011] [error] [client 88.xx.xx.xx] PHP 9. JDocumentHTML->getBuffer() /home/user/joomla16/plugins/system/jat3/jat3/core/template.php:958, referer: 88.xx.xx.xx:81/j16/index.php/using-joomla/extensions/components
[Tue Aug 09 14:09:02 2011] [error] [client 88.xx.xx.xx] PHP 10. JDocumentRendererModules->render() /home/user/joomla16/plugins/system/jat3/jat3/core/joomla/documenthtml.php:283, referer: 88.xx.xx.xx:81/j16/index.php/using-joomla/extensions/components
[Tue Aug 09 14:09:02 2011] [error] [client 88.xx.xx.xx] PHP 11. JDocumentRendererModule->render() /home/user/joomla16/libraries/joomla/document/html/renderer/modules.php:33, referer: 88.xx.xx.xx:81/j16/index.php/using-joomla/extensions/components
[Tue Aug 09 14:09:02 2011] [error] [client 88.xx.xx.xx] PHP 12. JModuleHelper::renderModule() /home/user/joomla16/libraries/joomla/document/html/renderer/module.php:95, referer: 88.xx.xx.xx:81/j16/index.php/using-joomla/extensions/components
[Tue Aug 09 14:09:02 2011] [error] [client 88.xx.xx.xx] PHP 13. require() /home/user/joomla16/plugins/system/jat3/jat3/core/joomla/modulehelper.php:162, referer: 88.xx.xx.xx:81/j16/index.php/using-joomla/extensions/components
[Tue Aug 09 14:09:02 2011] [error] [client 88.xx.xx.xx] PHP 14. cbimport() /home/user/joomla16/modules/mod_cblogin/mod_cblogin.php:38, referer: 88.xx.xx.xx:81/j16/index.php/using-joomla/extensions/components
[Tue Aug 09 14:09:02 2011] [error] [client 88.xx.xx.xx] PHP 15. include_once() /home/user/joomla16/administrator/components/com_comprofiler/plugin.foundation.php:111, referer: 88.xx.xx.xx:81/j16/index.php/using-joomla/extensions/components
[Tue Aug 09 14:09:02 2011] [error] [client 88.xx.xx.xx] PHP 16. define() /home/user/joomla16/components/com_comprofiler/plugin/language/spanish/spanish.php:1159, referer: 88.xx.xx.xx:81/j16/index.php/using-joomla/extensions/components
(...)


As long as i can test, everything is working ok.

Any suggestions? i'm absolutely lost!

I'm getting error in Joomla1.6 - CB1.7