Hi @corneliusw,
It appears that this link is contained in your WordPress database or in a cache somewhere.
My suggestions would be:
1) Make sure that you clear all forms of cache including your browser cache, your WP cache (your WP caching plugin if you have one), and your server cache, if you have one.
2) If the problem still exists then there will be a URL in your database that needs updating.
If you have ssh and wp-cli access you can use the following commands in your web root folder (usually /public_html).
wp db export safe_backup.sql
wp search-replace 'https://airpodses.com/wp-content/uploads/2020/02/5-2.png' 'https://airpodses.com/wp-content/uploads/2020/02/5-2.png' --all-tables
This will replace the insecure URL in your database with a secure version. Note: please immediately move or delete the saved safe_backup.sql file from your public_html folder to ensure it’s not web accessible.
If you want to catch any other insecure URLs you could do a more global wp-cli replace such as:
wp search-replace 'https://airpodses.com/wp-content/' 'https://airpodses.com/wp-content/' --all-tables
…which will replace any insecure URL’s for content in the wp-content folder starting with the secure https:// equivalent.
If anything goes wrong you can instantly restore the originally saved database by running:
wp db import safe_backup.sql
WP-CLI is extremely powerful for doing things like this. With that said I highly recommend practicing on a test server or staging server first rather than a production site until you have enough experience. ??
3) If you don’t have WP-CLI access you can use a WordPress plugin to do a search and replace in the database. For example the Blue Velvet Update URL’s plugin here: https://www.ads-software.com/plugins/velvet-blues-update-urls/. Again, please make sure you backup the database before replacing any URL’s in the database so you can roll back if needed.
Hope that helps.