Problem Migrating from WordPress

I see there are 2 main methods (the official way using ruby from the command line and the Ben Balter plugin) for copying posts from WordPress to Jekyll. I’m not a developer and I have very limited technical knowledge. A friend of mine helped me set things up. I don’t know how this stuff works. I’m trying to copy 100+ WordPress posts.

I don’t know how to do this the official way. The command line scares me. Sorry but it’s true. :laughing:
https://import.jekyllrb.com/docs/wordpress/

I tried using Ben’s plugin. But every time I run it, it gives me a 500 Internal Server Error.

500 Internal Server Error

The server encountered an internal error or misconfiguration and was unable to complete your request.

Please contact the server administrator at webmaster@seanlaurence.com to inform them of the time this error occurred, and the actions you performed just before this error.

More information about this error may be available in the server error log.

How can I copy my 100+ posts?