'%1' is an unknown character set encoding label

Error constant SQLE_UNKNOWN_CHARSET
ODBC 2 State ERROR
ODBC 3 State ERROR
Parameter 1 The character set encoding label that is not recognized.
Severity 16
SQLCODE –868
SQLSTATE WC001
Sybase error code 13872
Probable cause

The specified character set label is not recognized, so conversion from/to that character set is not possible.