Hi @Ian_Sherwin_Canaya and @ajay_ps, even I’m new to MongoDB and I too had this error or whatever we can call this. I searched a ton of communities and was unable to find a fix and at the end came to a decision of reinstalling MongoDB from scratch by first removing all the packages and directories like log, database etc. After reinstalling it works fine.
About the error:
I have encountered two types of similar errors so far. One is similar to the one talked about in this post Active: failed (Result: core-dump) for which only fix I could find was to reinstall from scratch. I read somewhere that this is a possible consequence of crashed or corrupted database which can be caused by terminating the database in a way which shouldn’t be used ( I have no idea what way is it).
Another similar error is Active: failed (Result: exit-code). This can be caused by various correctable reasons like ownership (chown) or rwx (chmod) permissions of the log file and dbpath, the mongod service not running, etc.
I hope someone would find this information useful 