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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

My website is hosted on digitalocean droplet Ubuntu 14.04 x64.

Since yesterday when I am making any changes to my files on the server. The server don't reflect changes in the website.

I have the following observation:

1.When I am making changes to a file. Only the first change is being updated on the website. Any subsequent change is not being shown on the website.

  1. I am able to add new files. So when I add a new file for example testing.php . It is being shown in the link www.example.com/testing.php. But When I delete this file from my server. The link is still working same as before. Which means that it is showing the same old file on the link www.example.com/testing.php.

  2. All https links are working fine. I am able to make changes and these changes are being shown on the website. But http links are not showing any updates made by me.

Please help me on this.

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