@boxwallet hey, I see you still need to update the plugs section for the boxwallet app, to list there all the interface references for personal-files which were added, so instead of:
apps: boxwallet: command: bin/cli plugs: - personal-files
It needs to be:
apps: boxwallet: command: bin/cli plugs: - dot-bitcoinplus - dot-devault - dot-< other wallets >
This is explained in the personal-files interface documentation.