Hey can you help me out

[MR-pentestGuy]

i am using wsl and i have installed npm but i get these errors
i have tried looking them in google but was unable to find the main cause

command i ran cat urls.txt (has FUZZ) | puff -w xss.txt

Error: EACCES: permission denied, open '/usr/local/lib/node_modules/puff-fuzz/config.json'
at Object.openSync (fs.js:443:3)
at Object.writeFileSync (fs.js:1194:35)
at resolveChromiumPath (/usr/local/lib/node_modules/puff-fuzz/configwiz.js:33:16)
at Object. (/usr/local/lib/node_modules/puff-fuzz/puff.js:61:21)
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)

[0x5ECF4ULT]

Your error is in the first line. It explicitly says "permission denied". Check the access bits.