publish an article, I add a word like "tag", to click on the tag, blank page with this error:

Notice: Undefined index: tag in file /modules/xlanguage/include/functions.php line 258
Notice: Function xoops_load_lang_file() is deprecated, use xoops_loadLanguage() instead in file /include/functions.legacy.php line 31
Notice: Function xoops_getLinkedUnameFromId() is deprecated, use XoopsUserUtility::getUnameFromId() instead in file /include/functions.legacy.php line 44
Notice: Function xoops_getLinkedUnameFromId() is deprecated, use XoopsUserUtility::getUnameFromId() instead in file /include/functions.legacy.php line 44
Notice: Function xoops_getLinkedUnameFromId() is deprecated, use XoopsUserUtility::getUnameFromId() instead in file /include/functions.legacy.php line 44
Notice: Function xoops_getLinkedUnameFromId() is deprecated, use XoopsUserUtility::getUnameFromId() instead in file /include/functions.legacy.php line 44
Notice: Function xoops_getLinkedUnameFromId() is deprecated, use XoopsUserUtility::getUnameFromId() instead in file /include/functions.legacy.php line 44
Warning: MyTextSanitizer::makeTboxData4Show is deprecated in file /class/module.textsanitizer.php line 619
Notice: Function xoops_load_lang_file() is deprecated, use xoops_loadLanguage() instead in file /include/functions.legacy.php line 31
Notice: Deprecated function 'mod_getUnameFromIds', use XoopsUserUtility directly. in file /Frameworks/art/functions.user.php line 26

looking example of what should happen.

XOOPS 2.3.1 Final
PHP 5.2.6

Please help !!!

Thanks !!!