Broken Image Links

I went to check on my product feeds in my Google Merchant Account and it said all my products were disapproved because of broken image links. How do I fix that in OpenCart? This was the report:

Image problems (192 items)

Some of your items have problems related to images links. These might be
because of broken image URLs that do work properly or because of missing
'image link' values or because the submitted image URLs are blocked by
robots.txt.

192 items 100% of total

Missing image URLs

Thank you

Does anyone know how to fix this problem of missing image values, cause my google merchant acct sd all my products are suspended because of this. Im using oc 1.5.1.1 & 1.5.5.1 & 1.5.13 & 1.5.4.1
Thanks

I have the same problem, any remedy for this ?