opticover

I have an opticover wifi extender from 2018 https://www.amazon.com/gp/product/B07GC51H3W/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1 and I am trying to use the access point but it says no internet. What do I need to do in order to get the internet connected when my repeater mode works but...