found 35 vulnerabilities (9 low, 9 moderate, 17 high)
run npm audit fix to fix them, or npm audit for details

C:\Users\Jakob\Desktop\trafficupdate\trafficupdate>npm audit fix
npm ERR! code ELOCKVERIFY
npm ERR! Errors were found in your package-lock.json, run npm install to fix them.
npm ERR! Missing: gulp-sass@^2.0.4
npm ERR! Missing: bower@^1.3.3
npm ERR! Missing: shelljs@^0.3.0

npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\Jakob\AppData\Roaming\npm-cache_logs\2020-12-03T20_00_04_759Z-debug.log

this is my problem if i run npm audit fix... Can anyone help me?

Thank you in advance