This article will explain how to do Member/User Auto Approval Settings. Here are simple instructions to do that
1- First, enable the membership option so that registration options should be visible on front-end from. You can do it here;
Dashboard/ Settings / General / Membership / Check anyone can register
2- Now, navigate to plugin settings to enable user auto approval. You can do it here ;
Dashboard / WP DB / Settings / Account Settings / Turn ON “User Auto Approval” switch