[2019] Hi i am lvl 26 and can't interact with Brin anymore . everything else works

Hey there /u/RainbowTeaman -- Can I get some more information from you?

1. What mission & story chapter are you on?
2. Did it work again when you tried some of the suggestions below?

Good to hear. I am trying to track down additional details, so if you could provide the mission, story, chapter, etc. that would be helpful. Either way, glad it's working again for you.