There’s nothing to be fixed, sorry. I mean, can’t reproduce in my 2 online boards, localhost PC, 2 clients boards I had access this week; nothing logged. It is something related to the changes you made, as you said above. It’s trying to load images and it isn’t finding them.
Change provider. Change settings to store locally. Run the support tool. You will get new images and they will be stored in your uploads folder. It works and always worked. I believe people would already complain at this point if they couldn’t store images.
If you do the above and insists, then send a PM with ACP credentials and FTP.
API key is required in all providers via URL, it can’t be hidden. You better store them locally. I don’t believe this will be a storage problem. Images are not big and I bet you won’t have more links that ordinary attachments in your board. 🙂