A supplier stands for the sources you rely on — people, habits or inner reserves that keep you stocked. Dream books read a failing supplier as fear that support will not arrive.
When this appeared in your dream, what were you feeling?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.