Error while running npm start

[PatrickZGW]

[email protected] start /home/pat/lightning-rpc-explorer
node ./bin/www

node: symbol lookup error: /home/pat/lightning-rpc-explorer/node_modules/grpc/src/node/extension_binary/node-v57-linux-x64-glibc/grpc_node.node: undefined symbol: SSL_library_init
npm ERR! file sh
npm ERR! code ELIFECYCLE
npm ERR! errno ENOENT
npm ERR! syscall spawn
npm ERR! [email protected] start: node ./bin/www
npm ERR! spawn ENOENT
npm ERR!
npm ERR! Failed at the [email protected] start script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR! /home/pat/.npm/_logs/2018-09-12T14_41_44_525Z-debug.log