The reason could be that having an account helps Manga Rock keep track of your reading history and provide personalized recommendations. It also might be for security and verification purposes to prevent unauthorized access.
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.
I wouldn't recommend trying to access Manga Rock as it's often against the law and can lead to legal consequences.
It could be that Manga Rock has run into legal troubles and had to remove its manga content. Or, there might be server problems or maintenance going on that's preventing you from finding what you're looking for.
Often, it's to build a community. By requiring an account, they can offer personalized experiences and keep users engaged over the long term. So, no account means no access to the stories.
It could be due to compatibility issues between the app and the iOS version. Maybe the latest update of iOS broke something in the account creation process.
Maybe the website is down for maintenance or has been shut down due to legal issues.
Maybe the app has been shut down or its manga library has been updated and some titles are no longer available.
There could be a few reasons. It could be that the manga you're looking for isn't available on that platform anymore, or there might be technical difficulties on their end affecting the search functionality.
Sometimes, the app might have been removed from the app store or there could be a problem with the version you're trying to install. Try looking for updates or alternative sources.
There could be several reasons. Maybe the popularity of Berserk led to it being taken down from Manga Rock. Another possibility is that there were legal complications preventing its availability on that particular platform.