non-secure http content

I have been using Pretty Borders Plus! to make templates for my listings.  Yesterday I was told the borders are "non-secure http content" and my listing will be removed if I do not fix it.  I just took it out.  How can I fix it?  One of my listing at least let me put some photos into the "description" area, but the others did not  😞  Is there anywhere to get some templates that can be used on eBay now?

 

First Photobucket started demanding hundreds of dollars, now this.  ETSY is starting to look attractive. 

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https://www.ebay.com.au/sh/lst/active/http-content

 

This is how it was explained to me to remove the active content

Go to bulk edit and select all,

click edit and it will take you to the ebay bulk edit screen,

once there select all,

on the LH side click the down arrow on edit fields and select ITEM descriptions,

this will popup a box and in that popup box click the down arrow and select -- edit listings in bulk -- find and replace....

then in the find box type http and in the replace box type https and then click save and close and follow the onscreen prompts...

and hopefully its all done and fixed