Failed to start Create Volatile Files and Directories in Debian

Using debian in beaglebone black. The board is connected online with a static ip for remote ssh. After few days I couldn't able to ssh my board. While debugging the board received following error log. Failed to start Create Volatile Files and Directories. Failed services: Volatile file creation, ssh-server, networking service etc. Failed to start. What may be went wrong ? Have anyone faced similar issue. Log: [FAILED] Failed to start Create Volatile Files and Directories [FAILED] Failed to start Entropy daemon using the HAVEGE algorithm [FAILED] Failed to start Network Time Synchronization. [FAILED] Failed to start The Apache HTTP Server. **[FAILED] Failed to start OpenBSD Secure Shell server.**