I did not use it but I guess that if you can log in your wallet a week ago, you can find an option to export it wallet mnemonic seed or wallet private key.
Yes i can access the app but unfortunately there is no option to export private keys, only to export the mnemonic seed. I have tried that seed on iancoleman's site but i do not know the derivation paths for btc from eidoo wallet so i am not getting the correct private key