Deprecated: Invalid characters passed for attempted conversion, these have been ignored in C:\wamp64\www\React_mob\9.1\TCPDF\include\tcpdf_colors.php on line 388

Deprecated: Invalid characters passed for attempted conversion, these have been ignored in C:\wamp64\www\React_mob\9.1\TCPDF\include\tcpdf_colors.php on line 388
TCPDF ERROR: Some data has already been output, can't send PDF file