Maybe it's due to copyright issues. Some manga on the platform might not have the proper authorization, so they have to be removed.
Possibly, the manga being deleted weren't popular enough or didn't meet certain quality standards set by the platform. Or, there could be changes in the platform's business strategy that led to the removal of some manga.
Maybe there's a glitch in the software or your settings are off. Check for updates and make sure your save folder is properly selected.
The main reason for Manga Rock's removal of manga is that it was infringing on the rights of manga creators and publishers. This kind of illegal activity couldn't be tolerated, so the manga had to go.
It could be that Manga Rock has faced legal actions and had to remove all the manga to comply with the law. Or maybe they just couldn't keep up with providing content for some operational reasons.
The harem manga on Manga Rock might be unwanted because of factors like repetitive storylines, lack of originality, or bad art style. Sometimes, it just doesn't resonate with the readers' preferences.
Maybe the idea for a Goddess manga just didn't gain traction among creators or publishers. As for Manga Rock, it was known for providing unauthorized manga access, so it was likely taken down to protect the rights of the original creators and publishers.
Maybe there's a glitch in the system or the manga you're looking for isn't available on that platform.
It could be that Manga Rock broke because of updates gone wrong or compatibility problems with new devices or software. Sometimes, too much traffic can also cause it to malfunction.
Maybe there are technical issues or server problems. It could also be due to licensing restrictions or a lack of resources from the developers.
I'm not really sure. Maybe it's just the way the story is written or the characters' traits.
Maybe it's because of copyright issues. Some people think it violates the rights of manga creators.