documentation/Script.md

@@ -160,6 +160,7 @@ See the available start up [flags](documentation/script#cli-flags for the script
   - 1: No oauth key or username
   - 2: Stopped by cmpc script key
   - 3: Stopped by moderator with runtime id
+  - 4: You have enabled the passwords module but the [`cryptography`](https://pypi.org/project/cryptography/) package is not installed
 
 - create_empty_config.py
   - 0: Success