Failed Login Session for Twitter Connect Plugin

I am trying to use Twitter Connect plugin with firebase for my Ionic 3 application. It was working perfect but now it is throwing Failed Login Session error in the console.

In package.json:

  "dependencies": {
    "@ionic-native/twitter-connect": "^4.19.0",
    "twitter-connect-plugin": "git+",
  "cordova": {
    "plugins": {
      "cordova-plugin-whitelist": {},
      "twitter-connect-plugin": {
        "FABRIC_KEY": "********************",
        "TWITTER_KEY": "****************",
        "TWITTER_SECRET": "******************"

In config.xml:

<plugin name="twitter-connect-plugin" spec="">
    <variable name="FABRIC_KEY" value="***********" />
    <variable name="TWITTER_KEY" value="***********" />
    <variable name="TWITTER_SECRET" value="*************" />

I have checked all the keys and they are all correct. Can anyone point me what is the problem here?