Possibly server issue on Jolla side?
Youbdo have Android Support installed?
You are able to download native apps?
sign out of jolla account, reboot, sign in, assure Android runtime is installed, reboot, try again
This then seems to be a second issue and should be separated. Maybe as bug report even?
But I do not get it. Which file browser? The one from system settings (jolla internal)? You just need to tap on it.
@Seven.of.nine the internal does not have a right white dot and no pulley menu, just tapping on it…???