2018-11-23 10:58:18: imagepng(./upload/qrCode/test.png): failed to open stream: No such file or directory2018-11-23 10:59:00: imagepng(./upload/qrCode/test.png): failed to open stream: No such file or directory2018-11-23 10:59:05: imagepng(upload/qrCode/test.png): failed to open stream: No such file or directory