Fatal error: Uncaught TypeError: imagejpeg(): Argument #2 ($file) must be a file name or a stream resource, false given in /home/agile4training/public_html/pdfb/include/tcpdf_images.php:147 Stack trace: #0 /home/agile4training/public_html/pdfb/include/tcpdf_images.php(147): imagejpeg(Object(GdImage), false, 75) #1 /home/agile4training/public_html/pdfb/tcpdf.php(7149): TCPDF_IMAGES::_toJPEG(Object(GdImage), 75, false) #2 /home/agile4training/public_html/pdfb/course.php(397): TCPDF->Image('../assets/image...', 20.000018055556, 52, 35, 35, 'webp', '', '', false, 300, '', false, false, 0) #3 {main} thrown in /home/agile4training/public_html/pdfb/include/tcpdf_images.php on line 147