Korea and Kakao: '503 service temporarily unavailable'
My elderly parents moved into an apartment condo in New Jersey a few years ago when they found that they couldn't upkeep a single-family house any longer due to increasing frailty. Before they moved in, they had some renovations done to their kitchen and bathrooms to make them modern, clean and stylish. Recently, however, they started smelling a foul odor coming from their bathrooms. Despite multiple tries, they couldn't diagnose the source of the problem. In short, while the outside of the apartment looked spic and span, the underlying infrastructure was shoddy.
Source: koreatimes.co.kr