Why is the mongoDB database constantly crashing?

Question

MongoDB

running a node.js script with the mongoose module and about every hour there is an error
Couldn't connect to server 127.0.0.1:27017
and the script and the database completely stop working until I fix the database and restart the script.
I repair the database using these commands:

after these commands, as I said, everything works well for an hour and then again this error.

Answer 1

Look at the logs, there may be a lack of RAM or disk space