DevOps, CI/CD and Automation

Hello,
Please forgive me if this has already been answered, but I did quite a bit of searching and could not find any resolved threads on this matter.

I'm getting the following error from my call to xmlparser.parse(parser, Path || File);

ERROR at line 1:
ORA-20100: Error occurred while parsing: No such file or directory
ORA-06512: at "SYS.XMLPARSER", line 22
ORA-06512: at "SYS.XMLPARSER", line 79
ORA-06512: at "MyProcedure", line 219
ORA-06512: at line 1

Now, I've seen that sometimes this can be caused because of a missing dtd, so I've set the following:
xmlparser.setValidationMode(parser, FALSE);

Moreover, I can access the same file with a call to:

utl_file.fopen(Path, File, 'r');


What can I begin to do to try and solve this?

Thanks,
Ryan