Sure is. Manhwa specifically refers to comics created in Korea and has its own unique style and characteristics compared to comics from other countries.
It could be that there were technical problems or not enough funds to keep it running. Sometimes, changes in the market or competition can also affect its fate.
Often, such sites face legal actions and get taken down. Maybe that's what happened to this one. It's important to note that these kinds of sites are usually not in line with proper online behavior and regulations.
In Korean,'manhwa' is expressed as '毵岉檾'. It's a commonly used term for comics or graphic novels. Sometimes, the pronunciation might vary slightly depending on the regional dialect, but '毵岉檾' is the standard way.
Korean manhwa might be censored because of factors such as depicting excessive violence, sexual content, or going against social and political norms. Sometimes, it's also to comply with legal requirements and protect the younger audience.