PHPTAL error occured

exception 'PHPTAL_VariableNotFoundException' with message 'Array doesn't have key named 'description'' in /home/rasysa.current/html/sp2/htdocs/pkg/style/index.tpl.html:82
Stack trace:
#0 /usr/local/lib/php/PHPTAL/Context.php(427): PHPTAL_Context::pathError(Array, 'description', 'description')
#1 /var/tmp/tpl_5d8097c5_index_tpl__D7QkOhebSOTU4Svi8JA3ZQ.php(100): PHPTAL_Context::path(Array, 'description')
#2 [internal function]: tpl_5d8097c5_index_tpl__D7QkOhebSOTU4Svi8JA3ZQ_slot_contents_main_0(Object(PHPTAL4), Object(PHPTAL4))
#3 /usr/local/lib/php/PHPTAL/Context.php(201): call_user_func('tpl_5d8097c5_in...', Object(PHPTAL4), Object(PHPTAL4))
#4 /var/tmp/tpl_5d70cbe3_smartphone_v3r0_tpl__3ABGNnTRMAn5Bcz1hJscag.php(86): PHPTAL_Context->echoSlot('contents_main')
#5 [internal function]: tpl_5d70cbe3_smartphone_v3r0_tpl__3ABGNnTRMAn5Bcz1hJscag_slot_raw_body_0(Object(PHPTAL4), Object(PHPTAL4))
#6 /usr/local/lib/php/PHPTAL/Context.php(201): call_user_func('tpl_5d70cbe3_sm...', Object(PHPTAL4), Object(PHPTAL4))
#7 /var/tmp/tpl_63539091_template_v3r0_tpl__RWgowKJeRxo_JpGgI1hUqA.php(1058): PHPTAL_Context->echoSlot('raw_body')
#8 /usr/local/lib/php/PHPTAL.php(784): tpl_63539091_template_v3r0_tpl__RWgowKJeRxo_JpGgI1hUqA_template(Object(PHPTAL4), Object(PHPTAL4))
#9 /var/tmp/tpl_5d70cbe3_smartphone_v3r0_tpl__3ABGNnTRMAn5Bcz1hJscag.php(214): PHPTAL->_executeMacroOfTemplate('/assets/templat...', Object(PHPTAL4))
#10 /usr/local/lib/php/PHPTAL.php(784): tpl_5d70cbe3_smartphone_v3r0_tpl__3ABGNnTRMAn5Bcz1hJscag_smartphone(Object(PHPTAL4), Object(PHPTAL4))
#11 /var/tmp/tpl_5d8097c5_index_tpl__D7QkOhebSOTU4Svi8JA3ZQ.php(1786): PHPTAL->_executeMacroOfTemplate('/assets/templat...', Object(PHPTAL4))
#12 /usr/local/lib/php/PHPTAL.php(675): tpl_5d8097c5_index_tpl__D7QkOhebSOTU4Svi8JA3ZQ(Object(PHPTAL4), Object(PHPTAL_Context))
#13 /home/rasysa.current/src/php/vendor/apsalus42/Apsalus4/Display5/Phptal.cls.php(386): PHPTAL->execute()
#14 /home/rasysa.current/src/php/vendor/apsalus42/Apsalus4/Display5/Phptal.cls.php(90): Apsalus4_Display_Phptal->_phptal_exec()
#15 /home/rasysa.current/src/php/vendor/apsalus42/Apsalus4/Display.cls.php(241): Apsalus4_Display_Phptal->_getContents()
#16 /home/rasysa.current/src/php/vendor/apsalus42/Apsalus4/Controller.cls.php(773): Apsalus4_Display->show()
#17 /home/rasysa.current/src/php/vendor/apsalus42/Apsalus4/Controller.cls.php(565): Apsalus4_Controller->display()
#18 /home/rasysa.current/src/php5/package/Marasai2/Rasysa/Portal/Controller.cls.php(39): Apsalus4_Controller->action()
#19 /home/rasysa.current/html/sp2/htdocs/pkg/style/index.phtml(7): Marasai2_Rasysa_Portal_Controller->action()
#20 {main}
/home/rasysa.current/html/sp2/htdocs/pkg/style/index.tpl.html