Well, I completely re did the shop system.

To upgrade to the new version I suggest the following steps. Depending on the complexity of your shop items this may take a few minutes.
1. Stop the server
2. Download then entire BAMobCoins folder from your server
3. Delete the whole folder from your server
4. Upload the new jar to the server
5. Start the server
6. Replace the config.yml in the main folder, balances.yml in the data folder, and if you made changes to messages.yml rename it to lang_en.yml and replace it in lang folder.
7. Due to the nature of the update being redoing the shop you will have to re do your shop items using the new format. See the example files Keys.yml and Items.yml for assistance.

I have added a way as well for me to implement multiple language files within the plugin. If you translate the plugins messages to another language please send it to me so that I can add it to the jar.

If you have questions with the update feel free to message me on here or discord(Discord can be found on plugins main page.)