Couchbase sometimes just doesn't respond

Hello guys,

I’ve got a question. Sometimes my couchbase server suddenly gets really slow in responding or sometimes completely stops responding to any requests.
Even if I try to delete a bucket or flush a bucket from the couchbase console, it just keeps failing.

Is there a way to completely restart the service when weird behaviour happens? instead of reinstalling the couchbase server.

I tried restarting the service via Windows Service. but after it restarts, it will completely not work anymore