Security requirements

Good afternoon, 

 

I have been using HTML to insert some listings and using photobucket in some of these listings.  Since I received the warning about security and some HTML issues, I have tried to remove the content that might contravene ebay restrictions.  I think I have managed most of these, however, there is one that has active bidders which I am not confident about changing without losing everything.  As this listing will come to a natural ending soon, I would feel more comfortable leaving it as is as I am a bit scared that I will end up deleting everything.  What are your suggestions?  Obviously, this will not happen again.  Thank you in advance for your assistance. 

It says to fix it by early Oct....

 

https://sellercentre.ebay.com.au/sr17-2/ebay-secure-links