Cannot register connection to '%1' since automatic label exhausted

Error constant SQLE_CONN_REG_AUTO_LABEL_EXHAUSTED
ODBC 2 state 42000
ODBC 3 state 42S02
Parameter 1 Name of the application.
Severity 16
SQLCODE -790
SQLSTATE 5RW29
Sybase error code 13800
 Probable cause