Error 1007: An error occurred while running Ghostscript

[cthomas5858]

Getting the following error:

An error occurred.
Error 1007: An error occurred while running Ghostscript.
%%[ Error: syntaxerror; OffendingCommand: --nostringval--]%%
Run converter to create PDF file

After this error message displays, get the following error:

Attachment D:\PDF_temp\Invoice144632.pdf does not exist or can not be accessed from the program.

Please help!