You called a routine that does not exist in the database, you do not have permission to execute the routine, or you called the routine with too few or too many arguments. If a prepared statement invokes a user-defined routine and your application or another application drops the routine before the prepared statement is executed, you will receive this error.
You might also see this error message if you write an expression that calls an SPL routine (stored procedure) that returns no values. For an SPL routine to be usable in an expression, the routine must return a value.
Check that the name of the routine is correct, that you have execute permission, that you specified the correct number of arguments to execute a routine, and that the data types for the arguments are appropriate. For a prepared statement that refers to the routine, make sure that the routine still exists when you execute the statement.