This is usually because you have deleted some of the code when adding a description or an image.  Please go through the following steps to ensure you are using the template correctly:

Firstly take a look at your eBay shop front and make sure you are happy that everything is how you want it and the whole template is showing correctly.

Then list a brand new item following our step-by-step listing instructions. Do not make any amendments, simply paste the code in and list and you will be able to see the listing and check the template is showing correctly.

If this is all okay, go ahead and revise the item and make changes one at a time. Firstly change the title, save and make sure that is okay. Then go back and revise and change the description, save, and make sure that looks okay. Lastly change the image, save, and make sure that looks okay. 

What we are doing is trying to see at what stage you have a problem. Hopefully by doing things a little slower and focusing on one part of the code at a time you will only change the code that needs to be changed and your template will work just fine.