Notice: Trying to get property 'id' of non-object in /var/www/natos.lt/framework/data/gw_db.class.php on line 104

Fatal error: Uncaught Exception: ERROR: MySQL_ERROR: Unknown column 'title_ru' in 'order clause' (1054) CMD: SELECT SQL_CALC_FOUND_ROWS a.* FROM `gw_countries` AS a ORDER BY title_ru ASC in /var/www/natos.lt/framework/data/gw_db.class.php:108 Stack trace: #0 /var/www/natos.lt/framework/data/gw_db.class.php(177): GW_DB->trigger_error() #1 /var/www/natos.lt/framework/data/gw_db.class.php(202): GW_DB->query() #2 /var/www/natos.lt/framework/data/gw_data_object.class.php(467): GW_DB->fetch_rows() #3 /var/www/natos.lt/framework/models/gw_country.class.php(19): GW_Data_Object->findAll() #4 /var/www/natos.lt/applications/site/modules/users/module_users.class.php(102): GW_Country->getOptions() #5 /var/www/natos.lt/applications/site/modules/users/module_users.class.php(129): Module_Users->initCountryOpt() #6 /var/www/natos.lt/applications/site/modules/users/module_users.class.php(164): Module_Users->initOptions() #7 /var/www/natos.lt/applications/site/lib/gw_public_module.class.php(103): Module_Users->viewRegister() #8 /var/www/na in /var/www/natos.lt/framework/data/gw_db.class.php on line 108
error report turned off
Array
(
    [type] => 1
    [message] => Uncaught Exception: ERROR: MySQL_ERROR: Unknown column 'title_ru' in 'order clause' (1054) 
CMD: SELECT SQL_CALC_FOUND_ROWS a.* FROM `gw_countries` AS a ORDER BY title_ru ASC in /var/www/natos.lt/framework/data/gw_db.class.php:108
Stack trace:
#0 /var/www/natos.lt/framework/data/gw_db.class.php(177): GW_DB->trigger_error()
#1 /var/www/natos.lt/framework/data/gw_db.class.php(202): GW_DB->query()
#2 /var/www/natos.lt/framework/data/gw_data_object.class.php(467): GW_DB->fetch_rows()
#3 /var/www/natos.lt/framework/models/gw_country.class.php(19): GW_Data_Object->findAll()
#4 /var/www/natos.lt/applications/site/modules/users/module_users.class.php(102): GW_Country->getOptions()
#5 /var/www/natos.lt/applications/site/modules/users/module_users.class.php(129): Module_Users->initCountryOpt()
#6 /var/www/natos.lt/applications/site/modules/users/module_users.class.php(164): Module_Users->initOptions()
#7 /var/www/natos.lt/applications/site/lib/gw_public_module.class.php(103): Module_Users->viewRegister()
#8 /var/www/na
    [file] => /var/www/natos.lt/framework/data/gw_db.class.php
    [line] => 108
    [error] => 1
)