Step 1: Open "Install code" Section
Step 2: You can see below page
Step 3: Click on " Uninstall code" button.
Step 4: Wait for 2 minutes, It will be done
Step 5: Now, you can uninstall Flits from your store.
For any support regarding this, feel free to contact us at firstname.lastname@example.org
We will help you as priority request regarding uninstall code from your theme.