If you really want to clear out your whole store you have two options:
1. If you only have Turn 14 products loaded by the app reach out to support@dataheretothere.com and ask us to clear the store.
2. If you have manually created products you want to keep, we can't clear out the store as our method totally wipes the whole store. You will want to either delete all the Turn 14 brands through Shopify, or try narrowming the filters down drastically so that the app is forced to remove as many products as possible.