Fatal error: Uncaught Error: Using $this when not in object context in /home/mahmoud2025/public_html/vendor/consoletvs/charts/src/Templates/highcharts/line.realtime.php:7 Stack trace: #0 {main} thrown in /home/mahmoud2025/public_html/vendor/consoletvs/charts/src/Templates/highcharts/line.realtime.php on line 7