Since a CGI script is merely a normal program that has some expectations on its input and output, you can simply run the program and look if (and what) errors get printed.

If the program works on the old machine, look at the contents of @INC on the old machine. Somewhere there is Error.pm, while it is not available on the new machine.

In reply to Re^3: Custom module is present but not read by Apache (?) by Corion
in thread Custom module is present but not read by Apache (?) by Anonymous Monk

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