i tried restoring on a different device and it doesn't work for me either. the restore button is disabled. i was able to restore the wallet on blockstream green though. so this is just a bug with aqua. 

nostr:npub1excellx58e497gan6fcsdnseujkjm7ym5yp3m4rp0ud4j8ss39js2pn72a restore doesn't seem to be working on android.