I am using Wakka 1.12R3, it installed successfully but when i access it, its showing blank page with follwoing error in DEBUG

Notice [PHP]: Undefined index: xoops_lblocks in file c:\program files\apache group\apache\htdocs\www\xoops\html\class\smarty\Smarty.class.php line 626
Notice [PHP]: Undefined index: xoops_ccblocks in file c:\program files\apache group\apache\htdocs\www\xoops\html\class\smarty\Smarty.class.php line 626
Notice [PHP]: Constant _MI_NAME already defined in file c:\program files\apache group\apache\htdocs\www\xoops\html\modules\wakka\language\english\modinfo.php line 2
Notice [PHP]: Undefined variable: method in file c:\program files\apache group\apache\htdocs\www\xoops\html\modules\wakka\wakka.php line 90
Notice [PHP]: Undefined index: time in file c:\program files\apache group\apache\htdocs\www\xoops\html\modules\wakka\class\class.wakka.php line 561
Notice [PHP]: Undefined property: pageCache in file c:\program files\apache group\apache\htdocs\www\xoops\html\modules\wakka\class\class.wakka.php line 81
Notice [PHP]: Undefined variable: page in file c:\program files\apache group\apache\htdocs\www\xoops\html\modules\wakka\class\class.wakka.php line 76
Notice [PHP]: Undefined index: HTTP_REFERER in file c:\program files\apache group\apache\htdocs\www\xoops\html\modules\wakka\class\class.wakka.php line 297
Notice [PHP]: Undefined variable: vars in file c:\program files\apache group\apache\htdocs\www\xoops\html\modules\wakka\class\class.wakka.php line 338
Warning [PHP]: includebuffered(actions/header.php): failed to open stream: No such file or directory in file c:\program files\apache group\apache\htdocs\www\xoops\html\modules\wakka\class\class.wakka.php line 53
Warning [PHP]: includebuffered(): Failed opening 'actions/header.php' for inclusion (include_path='c:\Program Files\Apache Group\Apache\www\tikiwiki\smarty\;c:\Program Files\Apache Group\Apache\www\tikiwiki\') in file c:\program files\apache group\apache\htdocs\www\xoops\html\modules\wakka\class\class.wakka.php line 53
Warning [PHP]: includebuffered(handlers/page/show.php): failed to open stream: No such file or directory in file c:\program files\apache group\apache\htdocs\www\xoops\html\modules\wakka\class\class.wakka.php line 53
Warning [PHP]: includebuffered(): Failed opening 'handlers/page/show.php' for inclusion (include_path='c:\Program Files\Apache Group\Apache\www\tikiwiki\smarty\;c:\Program Files\Apache Group\Apache\www\tikiwiki\') in file c:\program files\apache group\apache\htdocs\www\xoops\html\modules\wakka\class\class.wakka.php line 53
Notice [PHP]: Undefined variable: vars in file c:\program files\apache group\apache\htdocs\www\xoops\html\modules\wakka\class\class.wakka.php line 338
Warning [PHP]: includebuffered(actions/footer.php): failed to open stream: No such file or directory in file c:\program files\apache group\apache\htdocs\www\xoops\html\modules\wakka\class\class.wakka.php line 53
Warning [PHP]: includebuffered(): Failed opening 'actions/footer.php' for inclusion (include_path='c:\Program Files\Apache Group\Apache\www\tikiwiki\smarty\;c:\Program Files\Apache Group\Apache\www\tikiwiki\') in file c:\program files\apache group\apache\htdocs\www\xoops\html\modules\wakka\class\class.wakka.php line 53
Notice [PHP]: Undefined index: script in file c:\program files\apache group\apache\htdocs\www\xoops\html\templates_c\db%3Awakka_item.html line 3
Notice [PHP]: Undefined index: editurl in file c:\program files\apache group\apache\htdocs\www\xoops\html\templates_c\db%3Awakka_item.html line 6
Notice [PHP]: Undefined index: title in file c:\program files\apache group\apache\htdocs\www\xoops\html\templates_c\db%3Awakka_item.html line 11
Notice [PHP]: Undefined index: navheader in file c:\program files\apache group\apache\htdocs\www\xoops\html\templates_c\db%3Awakka_item.html line 13
Notice [PHP]: Undefined index: text in file c:\program files\apache group\apache\htdocs\www\xoops\html\templates_c\db%3Awakka_item.html line 15
Notice [PHP]: Undefined index: navfooter in file c:\program files\apache group\apache\htdocs\www\xoops\html\templates_c\db%3Awakka_item.html line 17
Notice [PHP]: Undefined index: commentsnav in file c:\program files\apache group\apache\htdocs\www\xoops\html\templates_c\db%3Awakka_item.html line 26
Notice [PHP]: Undefined index: lang_notice in file c:\program files\apache group\apache\htdocs\www\xoops\html\templates_c\db%3Awakka_item.html line 28
Notice [PHP]: Undefined index: comment_mode in file c:\program files\apache group\apache\htdocs\www\xoops\html\templates_c\db%3Awakka_item.html line 34
Notice [PHP]: Undefined index: comment_mode in file c:\program files\apache group\apache\htdocs\www\xoops\html\templates_c\db%3Awakka_item.html line 40
Notice [PHP]: Undefined index: comment_mode in file c:\program files\apache group\apache\htdocs\www\xoops\html\templates_c\db%3Awakka_item.html line 46
Notice [PHP]: Undefined index: xoops_module_header in file c:\program files\apache group\apache\htdocs\www\xoops\html\templates_c\sev_zero%2Ftheme.html line 35
Notice [PHP]: Undefined index: xoops_clblocks in file c:\program files\apache group\apache\htdocs\www\xoops\html\templates_c\sev_zero%2Ftheme.html line 104
Notice [PHP]: Undefined index: xoops_crblocks in file c:\program files\apache group\apache\htdocs\www\xoops\html\templates_c\sev_zero%2Ftheme.html line 116

I am unable to solve the problem. what is wrong