Fatal error: Uncaught Error: Using $this when not in object context in /home/mydemotec/public_html/windstream/vendor/niklasravnsborg/mpdf/includes/upperCase.php:2 Stack trace: #0 {main} thrown in /home/mydemotec/public_html/windstream/vendor/niklasravnsborg/mpdf/includes/upperCase.php on line 2