PHPTAL error occured

exception 'Exception' with message '[DBM_ERROR][DB_PGSQL:637]ExecuteSel is failed . not yet connected.' in /home/rasysa.current/src/php5/package/Rasysa/Widget/SalonHp/Resource/Style/List.cls.php:157
Stack trace:
#0 /home/rasysa.current/src/php5/package/Rasysa/Widget/SalonHp/Resource/Prototype.cls.php(161): Rasysa_Widget_SalonHp_Resource_Style_List->__fetchData()
#1 /usr/local/lib/php/PHPTAL/Context.php(357): Rasysa_Widget_SalonHp_Resource_Prototype->repeat()
#2 /var/tmp/tpl_57aacd50_index_tpl__lAcaxLYDKRQ9MSQdyAxKoQ.php(387): PHPTAL_Context::path(Object(Rasysa_Widget_SalonHp_Manager), 'styles/list/rep...')
#3 /usr/local/lib/php/PHPTAL.php(675): tpl_57aacd50_index_tpl__lAcaxLYDKRQ9MSQdyAxKoQ(Object(PHPTAL4), Object(PHPTAL_Context))
#4 /home/rasysa.current/src/php/vendor/apsalus42/Apsalus4/Display5/Phptal.cls.php(386): PHPTAL->execute()
#5 /home/rasysa.current/src/php/vendor/apsalus42/Apsalus4/Display5/Phptal.cls.php(90): Apsalus4_Display_Phptal->_phptal_exec()
#6 /home/rasysa.current/src/php/vendor/apsalus42/Apsalus4/Display.cls.php(241): Apsalus4_Display_Phptal->_getContents()
#7 /home/rasysa.current/src/php/vendor/apsalus42/Apsalus4/Controller.cls.php(773): Apsalus4_Display->show()
#8 /home/rasysa.current/src/php/vendor/apsalus42/Apsalus4/Controller.cls.php(565): Apsalus4_Controller->display()
#9 /home/rasysa.current/src/php5/package/Marasai2/Rasysa/SalonHp/Controller.cls.php(139): Apsalus4_Controller->action()
#10 /home/rasysa.current/html/home2/htdocs/pkg/template/smartphone/style/index.phtml(4): Marasai2_Rasysa_SalonHp_Controller->action()
#11 {main}

/home/rasysa.current/html/home2/htdocs/pkg/template/smartphone/style/index.tpl.html