How can feng shui be improved if something happens at the construction site?

There may be something under the construction site, such as the graves of predecessors or something bad happened in this land, which affected the magnetic field here. I have heard of a somewhat similar example, which is also about dirty things. When a shop opened, customers came in angrily, and business was bad as a result. The shopkeeper asked the Feng Shui master for help. When the master went out, the apprentice asked him to buy rice wine and peanut candy. Wine was placed in the four corners of the shop, and sugar was spilled on the ground. As a result, nothing strange happened the next day. I hope I can help you. Try it if it works. A little incense may also help. In fact, you can also use a compass to test and measure at the scene of the accident. If the needle of the compass is jumping abnormally, turning constantly, or not pointing to the south at all, it means that there is magnetic interference in that place, that is, there may really be something below.