PHPTAL error occured

exception 'PHPTAL_VariableNotFoundException' with message 'Attempt to read property 'detailbodies' from NULL value' in /home/rasysa.current/html/www/htdocs/pkg/headline/detail/detail.tpl.html:28
Stack trace:
#0 /usr/local/lib/php/PHPTAL/Context.php(349): PHPTAL_Context::pathError(NULL, 'detailbodies', 'detailbodies')
#1 /var/tmp/tpl_5d8c68fd_detail_tpl__cV5nGXt3tKSCAb8Lnrf7Gg.php(57): PHPTAL_Context::path(NULL, 'detailbodies')
#2 /usr/local/lib/php/PHPTAL.php(784): tpl_5d8c68fd_detail_tpl__cV5nGXt3tKSCAb8Lnrf7Gg_headline_detail(Object(PHPTAL4), Object(PHPTAL4))
#3 /var/tmp/tpl_5c6e5798_index_tpl__9Nenytkqre07L5ehHRXz_w.php(47): PHPTAL->_executeMacroOfTemplate('/home/rasysa.cu...', Object(PHPTAL4))
#4 /usr/local/lib/php/PHPTAL.php(675): tpl_5c6e5798_index_tpl__9Nenytkqre07L5ehHRXz_w(Object(PHPTAL4), Object(PHPTAL_Context))
#5 /home/rasysa.current/src/php/vendor/apsalus42/Apsalus4/Display5/Phptal.cls.php(386): PHPTAL->execute()
#6 /home/rasysa.current/src/php/vendor/apsalus42/Apsalus4/Display5/Phptal.cls.php(90): Apsalus4_Display_Phptal->_phptal_exec()
#7 /home/rasysa.current/src/php/vendor/apsalus42/Apsalus4/Display.cls.php(241): Apsalus4_Display_Phptal->_getContents()
#8 /home/rasysa.current/src/php/vendor/apsalus42/Apsalus4/Controller.cls.php(773): Apsalus4_Display->show()
#9 /home/rasysa.current/src/php/vendor/apsalus42/Apsalus4/Controller.cls.php(565): Apsalus4_Controller->display()
#10 /home/rasysa.current/src/php5/package/Marasai2/Rasysa/Portal/Controller.cls.php(39): Apsalus4_Controller->action()
#11 /home/rasysa.current/html/sp2/htdocs/pkg/headline/detail/index.phtml(7): Marasai2_Rasysa_Portal_Controller->action()
#12 {main}
/home/rasysa.current/html/sp2/htdocs/pkg/headline/detail/index.tpl.html