Google’s official message indicates to wait 3 days for a recrawl.
Update: 11 September 2020 (issue resolved)
Products are slowly getting approved again
update: 01 September 2020 (issue started)
It looks like this specific issue has started again.
Update: 17 June 2019 (issue resolved)
As of today, the issue has been resolved. However, you may continue to see this error when submitting new products. You will need to wait up to 3 days for a recrawl. It looks like the issue is technical and related to an influx of crawl requests. Meaning it delayed Google’s crawler, which then flagged the diagnostics report to flag this as a crawl error. Due to Google’s crawler not being able to process the number of requests. This is caused by Google’s crawler bot not able to collect the image. This issue should self resolve.
Initial Issue: 13 June 2019 (issue started)
If you are having issues where all images are disapproved or having crawl issues on the 13th of June 2019, then contact Google directly to report the issue: https://support.google.com/google-ads/answer/7218750
A lot of merchants are having this issue today and it’s related to Google’s processing mechanics.
Avoid making any changes to the feed image file name. Simply report the issue as per below and wait till Google fixes the technical issue.
If you continue to have issues, please report the issue directly to Google by clicking on the question mark in the top right corner and click on report a problem.