My family scraped the plastic before the Spring Festival, and then painted it twice with Pasteur paint. It's only the end of March, and it's all moldy! Excuse me, is the paint of poor quality? How to

My family scraped the plastic before the Spring Festival, and then painted it twice with Pasteur paint. It's only the end of March, and it's all moldy! Excuse me, is the paint of poor quality? How to remedy it? If there is no water seepage in the wall, it must be that the indoor temperature and humidity have reached the conditions for mold growth. Or convection of hot air and cold air. The solution is to use Jiugu woodcut to remove mold. This product not only has the function of removing mold, but also can penetrate into the wall to form a cell membrane to play a waterproof and moisture-proof role, preventing convection air and moisture from entering the wall, which can be said to completely eradicate mold. Do ventilation when you have time in the future, and the mold will not regenerate.