Oracle Solution for Error ora-19162

Solution for Oracle Error ORA-19162

ORA-19162: XPTY0004 - XQuery type mismatch: invalid argument types 'string', 'string' for function 'string'

What triggered the Error:

e type of the arguments that were passed to the given function was not valid.

What should we do to fix it:

x the arguments to be of a type appropriate for the given function.