React Native FBSDK Invalid key hash. Keyhash has been added to developer.facebook and app is live

First of all, I know this is a duplicate of other threads and questions, since yesterday I think I've read them all.

Now, I'm trying to login using facebook on a React Native app, for now I'm just running it on android. The very first time I tested it, it worked.

I have added the key that the phone is showing in the error to developer.facebook.com, I changed my app to live in there as well and I even trie the code that people pasted on the older posts:

    try {
    PackageInfo info = getPackageManager().getPackageInfo(
                "com.blabla", 
                PackageManager.GET_SIGNATURES);
    for (Signature signature : info.signatures) {
        MessageDigest md = MessageDigest.getInstance("SHA");
        md.update(signature.toByteArray());
        Log.d("KeyHash:", Base64.encodeToString(md.digest(), Base64.DEFAULT));
    }
} catch (NameNotFoundException e) {

} catch (NoSuchAlgorithmException e) {

}

This is the code I'm using for the login itself:

LoginManager.logInWithReadPermissions(['public_profile', 'email', 'user_likes']).then({
        function(result) {
            if (result.isCancelled) {
                alert('Login was cancelled');
            } else {
                AccessToken.getCurrentAccessToken().then((accessTokenData) => {
                    const credential = firebase.auth.FacebookAuthProvider.credential(accessTokenData.accessToken);

                    firebase.auth().signInWithCredential(credential).then((result) =>{
                        alert('Inicio de sesión exitoso');
                    }, (error)=>{
                        console.log(error)
                    })
                });
            }
        },
        function(error) {
            alert('Login failed with error: ' + error);
        }
    })
}

I'm getting this error:

At this point any help will be much appreciated, I'm quite desperate.