The answer to 'emergency plumbing overflowing' is that there are several common causes, including a clogged drain, a blockage in the main sewer line, or a problem with the septic system. Symptoms may include water backing up in sinks, tubs, or toilets, or water overflowing onto the floor. Solutions can vary depending on the cause, but may involve using a plunger, a drain snake, or calling a professional plumber.
If the overflow is due to a clogged drain, you may be able to resolve the issue with a plunger or a drain snake. However, if the problem is with the main sewer line or the septic system, it's best to call a professional plumber who can properly diagnose and fix the issue. Attempting to DIY a major plumbing problem can often make the situation worse and lead to more expensive repairs.