javascript - node js server random crash -

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i have node js server runing on digitalocean. server crashes without reason can catch, @ random times. error gives me:

bash: line 1: 22671 killed                  bash -l -c '"node" "--nocrankshaft" "--nolazy" `node --version | grep -vqe "v0\..\." && echo --nodead_code_elimination` "--debug-brk=15454" "/root/server.js"

if can put me on right direction solve great.

try log, happens because have 500, in order don't offline can use forever or lib


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