A computer crash is read as overload, the moment a system stops because too much is running at once. Tradition takes it as a picture of exhaustion and the need to pause.
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.