Droplet Connection Refused
I have a droplet which lost connection randomly. I installed wildfly secured with letsencrypt ssl in this droplet. I have APIs providing data to some websites. However, randomly, APIs cannot respond and then, I tried access to droplet with putty. I got "Connection Refused" error and after some minutes, I got back access to it and APIs got respond again. There is errors logged in my server. and I am very new to droplet setup and configurations. Can you please help me suggesting any ideas?