Thread:Extension talk:LDAP Authentication/SkinTemplate::makeTalkUrlDetails given invalid pagename Usuario

I installed and configured the module Extension_talk:LDAP_Authentication gives this error:

MediaWiki internal error.

Original exception: exception 'MWException' with message 'SkinTemplate::makeTalkUrlDetails given invalid pagename Usuario:' in /usr/share/mediawiki/includes/SkinTemplate.php:734 Stack trace:
 * 1) 0 /usr/share/mediawiki/includes/SkinTemplate.php(566): SkinTemplate->makeTalkUrlDetails('Usuario:')
 * 2) 1 /usr/share/mediawiki/includes/SkinTemplate.php(454): SkinTemplate->buildPersonalUrls
 * 3) 2 /usr/share/mediawiki/includes/OutputPage.php(1982): SkinTemplate->outputPage
 * 4) 3 /usr/share/mediawiki/includes/Wiki.php(406): OutputPage->output
 * 5) 4 /usr/share/mediawiki/includes/Wiki.php(594): MediaWiki->finalCleanup
 * 6) 5 /usr/share/mediawiki/includes/Wiki.php(503): MediaWiki->main
 * 7) 6 /usr/share/mediawiki/index.php(58): MediaWiki->run
 * 8) 7 {main}

Exception caught inside exception handler: exception 'MWException' with message 'SkinTemplate::makeTalkUrlDetails given invalid pagename Usuario:' in /usr/share/mediawiki/includes/SkinTemplate.php:734 Stack trace:
 * 1) 0 /usr/share/mediawiki/includes/SkinTemplate.php(566): SkinTemplate->makeTalkUrlDetails('Usuario:')
 * 2) 1 /usr/share/mediawiki/includes/SkinTemplate.php(454): SkinTemplate->buildPersonalUrls
 * 3) 2 /usr/share/mediawiki/includes/OutputPage.php(1982): SkinTemplate->outputPage
 * 4) 3 /usr/share/mediawiki/includes/Exception.php(182): OutputPage->output
 * 5) 4 /usr/share/mediawiki/includes/Exception.php(209): MWException->reportHTML
 * 6) 5 /usr/share/mediawiki/includes/Exception.php(490): MWException->report
 * 7) 6 /usr/share/mediawiki/includes/Exception.php(569): MWExceptionHandler::report(Object(MWException))
 * 8) 7 /usr/share/mediawiki/includes/Wiki.php(506): MWExceptionHandler::handle(Object(MWException))
 * 9) 8 /usr/share/mediawiki/index.php(58): MediaWiki->run
 * 10) 9 {main}

which can cause? thanks.