How to fix?

[techshaw]

Error: bad secret key size
at Function.fromSecretKey (C:\Users\crens\Downloads\api-arbs-example-main\node_modules@solana\web3.js\lib\index.cjs.js:8166:13)
at file:///C:/Users/crens/Downloads/api-arbs-example-main/index.mjs:26:11
at ModuleJob.run (node:internal/modules/esm/module_job:198:25)
at async Promise.all (index 0)
at async ESMLoader.import (node:internal/modules/esm/loader:385:24)
at async loadESM (node:internal/process/esm_loader:88:5)
at async handleMainPromise (node:internal/modules/run_main:61:12)