1. You have to update the json for each server for what you want included in the shop on that particular map.
2. You need to create a database in phpmyadmin , and apply these value to the config file of each server. The plugin will automatically create the table inside the database.
you need...
Sorry man if your not on a dedicated machine you need to use mysql, you can pickup a free database https://www.google.com/search?client=firefox-b-1-d&q=free+mysql+database
Wooly has posted a hotfix for the api posted in his discord that fixes the shop plugin, and agito posted a permissions fix in his discord that fixes the permission plugin! Tested both and they work perfectly!
You can fix your shop and your permissions. Wooly has posted an api update on his discord that will fix the shop plugin , and Agito has posted a permissions fix in his discord. They both work! Good luck!