Use of undefined constant T_MEDIA_UR

Before I begin, I just want to say that I know almost nothing about PHP, so if you were to help me, I would very much appreciate clear explanations.

I am using a CMS called Immerse. Last night, I posted a news story on my website's front page, everything worked fine, and then I went to bed. When I woke up, I tried to login to my CMS but got this error:

Error message: Use of undefined constant T_MEDIA_URL - assumed 'T_MEDIA_URL'
Error triggered by: PHP
In file: /a/path/name/apps/icms/controllers/application_controller.php
On line: 101
Error Code: 8

This is the section of that code:
Library::idefine('MEDIA_URL', T_MEDIA_URL.STYLE);

When I remove that line completely, I just get the next "undefined constant." None of the CMS's files have been changed recently, so I don't know how the error could have been triggered (maybe something with the database?).

Earlier in the week, I was getting PHP errors, but just cleared the CMS's cache and the problems fixed themselves. This problem won't. I also researched it on Google, and it said that the error pops up when people don't put ' ' around variables. I haven't touched anything, so I don't know how this could be the problem.

I am not even sure if I can even get help since this is a specific piece of software with coding that is probably only understandable by someone who has it, but I do appreciate anyone who tries to help!

 

Check that all the files it needs are being included, I suggest doing a find in files for T_MEDIA_URL and find out where that is defined, then find out if it is being included by the right scripts

 

That kind of error is triggered by your error_reporting being to too high (E_ALL). Please can you try the solution that I have posted on this thread: http://forums.digitalpoint.com/showthread.php?t=797186

If it doesn't work, please post if the original error(s) still exist, or if new ones occur.

Jay

 

I put this at the top of the file:

<?php
error_reporting(E_ALL ^ E_NOTICE);
?>

PHP:

However, when loading it, it was completely blank. There was no code.

 

Unfortunately this seems like its application specific, so there is little more that I can think of. Sorry.

Jay