2020-09-18 13:26:48: imagepng(/var/www/conferenece_com/conferenceseries_com/fdms/backend/web/upload/qrcode/01/d5/01d59917a9168a347642fe07a931b7403926c245.png): failed to open stream: No such file or directory2020-09-18 13:27:06: imagepng(/var/www/conferenece_com/conferenceseries_com/fdms/backend/web/upload/qrcode/01/d5/01d59917a9168a347642fe07a931b7403926c245.png): failed to open stream: No such file or directory