I cannot allow "external storage manager" aurora store

When I try setup the Aurora store on my Nvidia shield. When i came to the last step I have to alow several points, but I cannot allow “external storage manager” when i try do do that I always return to the start again. Does anyone have a solution for this probleme?

Try to ask the developers: Issues · Aurora OSS / AuroraStore · GitLab

Afair, from when I used it, it is something related to some android settings. But as @Licaon_Kter mentioned, ask Rahul (Aurora Dev).