edited question... I feel people may be misunderstanding my question, so i apologise for any ambiguity 

[![enter image description here](https://i.stack.imgur.com/rll7U.png)](https://i.stack.imgur.com/rll7U.png)

As you can see from the above picture, I have text in the top left hand corner of the CMS.

This text is the same on every page and I feel it is having a negative effect on the running of the CMS.

I have no clue how it got there and as a result have no clue how to get rid of it

I have a feeling I have managed to insert code as text in a php script but am unsure which one as I only eve open scripts related to my child theme.

Does anyone have any idea which scripts may link directly to the CMS and cause the above?