mongodb error upgrde

[littleheart]

[root@skykb openKB]# npm run-script dbUpgrade

openkb@1.0.23 dbUpgrade /var/www/html/openKB
node data/mongodbUpgrade.js

undefined:28
"connection_string": "mongodb://0.0.0.0:27017/skykbdb"
^

SyntaxError: Unexpected string in JSON at position 844
at JSON.parse ()
at Object.exports.read_config (/var/www/html/openKB/routes/common.js:34:31)
at Object. (/var/www/html/openKB/data/mongodbUpgrade.js:16:23)
at Module._compile (internal/modules/cjs/loader.js:778:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:789:10)
at Module.load (internal/modules/cjs/loader.js:653:32)
at tryModuleLoad (internal/modules/cjs/loader.js:593:12)
at Function.Module._load (internal/modules/cjs/loader.js:585:3)
at Function.Module.runMain (internal/modules/cjs/loader.js:831:12)
at startup (internal/bootstrap/node.js:283:19)
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! openkb@1.0.23 dbUpgrade: node data/mongodbUpgrade.js
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the openkb@1.0.23 dbUpgrade 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! /root/.npm/_logs/2020-09-22T14_52_15_896Z-debug.log
[root@skykb openKB]#