Confliction with Register Plus Redux

Hey,

I find the plugin has a conflict with Register Plus Redux 3.9.8. When I submit the registration form, the registration page simply reloads.

I am trying to use Register Plus Redux make the applicants have to be approved by admin to become members.

Is there anyway to solve the conflict? Or any other plugin that I should try to achieve the same purpose but without conflicting with your plugin?

Thanks in advance!!!

https://www.ads-software.com/extend/plugins/wp-flogin/