Tag - alternative

Fatal error: Uncaught Error: Non-static method Map::getStaticVar() cannot be called statically in /var/www/html/cognigen.ro/util/map.class.php:39 Stack trace: #0 /var/www/html/cognigen.ro/util/constants.class.php(20): Map::getList() #1 /var/www/html/cognigen.ro/modules/b_filters_tag.php(4): Constants::getList() #2 /var/www/html/cognigen.ro/site/module.class.php(69): include_once('...') #3 /var/www/html/cognigen.ro/site/module.class.php(88): Module->run() #4 /var/www/html/cognigen.ro/site/pagegroup.class.php(52): Module::displayModules() #5 /var/www/html/cognigen.ro/templates/2cols_rev.tpl(8): PageGroup->displayRightModules() #6 /var/www/html/cognigen.ro/util/util.class.php(89): include('...') #7 /var/www/html/cognigen.ro/site/page.class.php(62): Util::getTemplate() #8 /var/www/html/cognigen.ro/index.php(120): Page->display() #9 {main} thrown in /var/www/html/cognigen.ro/util/map.class.php on line 39