The business had issues with hot or cold running water, plumbing, drains, backflow prevention, or sewage disposal. Some of these, like no hot water, can force a temporary closure until fixed.
Commissary / Mobile Support Unit - equipped, maintained
In plain English
Floors, walls, ceilings, lighting, ventilation, or garbage areas needed repair or cleaning. These are usually less urgent than food-handling problems but still need to be fixed.
A required permit, food safety certificate, trained manager, or posted sign was missing or not current. These show the business is following the rules and has trained staff.