Hmm. I'm not seeing errors and the price of items with commas are being calculated on my end. When the error pop up, see if any are red (scroll in that error window) since the orange errors aren't a big deal (I do want to fix those orange ones eventually though) and won't be visible unless a red error is in the list, too.
Are you sure you have the latest version 1.5.3? I'm not seeing any issues with the item you're testing with as of 1.5.3.
I forgot to include a link when I released it, maybe you are still on 1.5.2?
https://github.com/bmos/FG-PFRPG-Tot...ses/tag/v1.5.3
Here is a test build that stops most of those ruleset warnings, so it's easier to see the real error.