Actually, I didn't look at the message carefully enough. If you are getting the program to run, this is an error you can ignore. It's akin to an abnormal termination. If you are not getting the script to work, it means the program is hitting something it can't get past, and the automatic handlers are destroying the handles and pointers rather than the clean up routines.
You need to have Links SQL installed, and set up and working before you can run the parse proram. It uses the Links.pm and .def files to determine what to do with the data and what your database looks like.
Make sure you have the new parse program from the /licensed area, and that you have it in the setup directory. You need to set a few variables in the program -- the name of the input file and hierarchy you want to import.
You need to set all the variables in Links.pm, and you need to go through the proceedure to create the database & tables in the /admin/setup/setup.cgi script.
If all that works, then you should be able to run the parse program.
The problem most people have is it:
1) imports no entries for some reason
2) imports entries psuedo randomly
This is an odd error you are getting, and without knowing more about how you have your system set up and configured (all the parts above) it's tricky to figure out.
It first looked like the #1 problem people have, which is their process is killed by a daemon, but looking at it carefully, that's not what is happening. Some abnormal condition is being hit, and the program is terminating abnormally (or even abnormally abnormal).
http://www.postcards.com FAQ:
http://www.postcards.com/FAQ/LinkSQL/