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A PHP Error was encountered

Severity: Notice

Message: Undefined index: userid

Filename: views/question.php

Line Number: 191

Backtrace:

File: /home/prodcxja/public_html/questions/application/views/question.php
Line: 191
Function: _error_handler

File: /home/prodcxja/public_html/questions/application/controllers/Questions.php
Line: 433
Function: view

File: /home/prodcxja/public_html/questions/index.php
Line: 315
Function: require_once

I was using Theme.AppCompat.Light.NoActionBar on my activities which worked flawlessly but I had to migrate to Androidx to use a library and after migrating there's now an actionBar.

I tried googling but could not get any fixes

Here's my code

Style.xml

<style name="NoActionBar" parent="Theme.AppCompat.Light.NoActionBar">
    <!-- Customize your theme here. -->
    <item name="colorPrimary">@color/colorPrimary</item>
    <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
    <item name="colorAccent">@color/colorAccent</item>
</style>

Manifest.xml

<activity android:name=".LoginActivity" android:theme="@style/NoActionBar"
        android:configChanges="orientation" android:screenOrientation="portrait"/>