If you choose Customize options you have to config in sections below
1.1.3 - Format
1.1.4 - Supported currencies
Use the country's ISO currency code. Separate your currency codes with a space.
1.2 - Config in main settings
1.2.1 - Go to Settings > General.
1.2.2 - On section Store currency > Change formatting.
This is the currency your products are sold in. After your first sale, currency is locked in and can’t be changed. To change your payout currency, go to payments settings.
You must change your currency into this format, It’s required to make the theme work properly
You can copy and paste these snippets of code
2 - Change text to your language
Copy the text you want to change. Eg: I’d like to translate the text Add to cart
Go to Shopify admin > Actions > Edit laguages
Paste that text to search > Write translation > Save