Fatal error: Uncaught Error: Call to undefined function Maestroerror\exec() in /home/ttsadmin/public_html/demo-ecommerceapi.devxportal.com/vendor/maestroerror/php-heic-to-jpg/src/HeicToJpg.php:192 Stack trace: #0 /home/ttsadmin/public_html/demo-ecommerceapi.devxportal.com/vendor/maestroerror/php-heic-to-jpg/src/HeicToJpg.php(71): Maestroerror\HeicToJpg->processImage('image1.heic') #1 /home/ttsadmin/public_html/demo-ecommerceapi.devxportal.com/vendor/maestroerror/php-heic-to-jpg/src/HeicToJpg.php(319): Maestroerror\HeicToJpg->convertImage('image1.heic') #2 /home/ttsadmin/public_html/demo-ecommerceapi.devxportal.com/vendor/maestroerror/php-heic-to-jpg/test-save.php(5): Maestroerror\HeicToJpg::convert('image1.heic') #3 {main} thrown in /home/ttsadmin/public_html/demo-ecommerceapi.devxportal.com/vendor/maestroerror/php-heic-to-jpg/src/HeicToJpg.php on line 192