Fatal error: Uncaught Error: [] operator not supported for strings in /var/www/sigicov_sign/shared/graficos/pChart/pChart.class:2122 Stack trace: #0 /var/www/sigicov_sign/shared/graficos/Example8.php(33): pChart->drawRadarAxis() #1 {main} thrown in /var/www/sigicov_sign/shared/graficos/pChart/pChart.class on line 2122