Android lock screen login says "No passkeys available"

[brailateo]

Registration works, found the usernames on server in myDatabase.json but login on the same device gives the error "No passkeys available". I'm using Google Chrome 126.0.6478.122 on Android 11 on a Redmi Note 9 Pro device.
NodeJS version v16.20.1 on server could be a problem?

I have tried with main and server/express branch because I saw a similar issue (marked closed) about this problem!

I'm leaving here the URL for testing: https://app.delta.ro/solauth/ (the trailing / must be present )

Here is my config.js file
// Base configuration
let config = {
"port": 3000,
"origin": "https://app.delta.ro",
"rpId": "app.delta.ro",
"rpName": "SOL autentificare",
"mode": "production",
"baseUrl": "https://app.delta.ro/solauth/", // Uses origin as default
"cookieMaxAge": 24 * 60 * 60 * 1000, // 24 hours
"challengeTimeoutMs": 90 * 1000, // 90 seconds
"loginTokenExpireSeconds": 60
};

Thanks,
Constantin Teodorescu