当我点击登录按钮时，我得到这个错误：

[19:49:11] [2018-12-25T20:49:57.389Z]  @firebase/database:, FIREBASE 
FATAL ERROR: Cannot parse Firebase url. Please use https://<YOUR 
FIREBASE>.firebaseio.com
- node_modules/@firebase/logger/dist/index.cjs.js:69:32 in 
defaultLogHandler
- node_modules/@firebase/logger/dist/index.cjs.js:159:31 in error
- node_modules/@firebase/database/dist/index.cjs.js:333:20 in fatal
- node_modules/@firebase/database/dist/index.cjs.js:1256:14 in 
parseRepoInfo
- node_modules/@firebase/database/dist/index.cjs.js:15103:38 in 
refFromURL

* src/modules/auth/api.js:24:24 in getUser
* src/modules/auth/api.js:19:32 in <unknown>

- node_modules/@firebase/auth/dist/auth.js:17:105 in <unknown>
- node_modules/@firebase/auth/dist/auth.js:20:199 in Fb
- ... 13 more stack frames from framework internals

我直接从Firebase复制并粘贴了配置文件，所以它应该是正确的，但我还是得到了这个错误。是什么原因导致的？有没有可能我从数据库复制的URL是错误的？
正如你可以看到的错误显示在我的文件api.js中

.then((user) => getUser(user, callback))

和

database.refFromURL('users').child(user.uid).once('value')

下面是我从api.js得到的代码：

import { auth, database, provider } from "../../config/firebase";

export function register(data, callback) {
    const { email, password } = data;
    auth.createUserWithEmailAndPassword(email, password)
        .then((user) => callback(true, user, null))
        .catch((error) => callback(false, null, error));
}

export function createUser (user, callback) {
   database.refFromURL('users').child(user.uid).update({ ...user })
        .then(() => callback(true, null, null))
        .catch((error) => callback(false, null, {message: error}));
}

export function login(data, callback) {
    const { email, password } = data;
    auth.signInWithEmailAndPassword(email, password)
        .then((user) => getUser(user, callback))
        .catch((error) => callback(false, null, error));
}

export function getUser(user, callback) {
    database.refFromURL('users').child(user.uid).once('value')
        .then(function(snapshot) {

            const exists = (snapshot.val() !== null);

            if (exists) user = snapshot.val();

            const data = { exists, user }
            callback(true, data, null);
        })
        .catch(error => callback(false, null, error));
}

有人能帮我弥补一下吗