TypeError about js-confuser HOT 9 OPEN

C:\Users\onmaz\Downloads\Krex Priv Gr@bber\Priv\node_modules\js-confuser\dist\transforms\controlFlowFlattening\switchCaseObfuscation.js:31
    return object.type == "SwitchStatement" && !object.cases.find(x => !(x.test.type == "Literal" && typeof x.test.value === "number" && Math.abs(x.test.value) < 100000));
                                                                                ^

TypeError: Cannot read properties of null (reading 'type')
    at C:\Users\onmaz\Downloads\Krex Priv Gr@bber\Priv\node_modules\←[4mjs-confuser←[24m\dist\transforms\controlFlowFlattening\switchCaseObfuscation.js:31:81
    at Array.find (<anonymous>)
    at SwitchCaseObfuscation.match (C:\Users\onmaz\Downloads\Krex Priv Gr@bber\Priv\node_modules\←[4mjs-confuser←[24m\dist\transforms\controlFlowFlattening\switchCaseObfuscation.js:31:62)
    at SwitchCaseObfuscation.input (C:\Users\onmaz\Downloads\Krex Priv Gr@bber\Priv\node_modules\←[4mjs-confuser←[24m\dist\transforms\transform.js:189:14)
    at C:\Users\onmaz\Downloads\Krex Priv Gr@bber\Priv\node_modules\←[4mjs-confuser←[24m\dist\transforms\transform.js:141:21
    at walk (C:\Users\onmaz\Downloads\Krex Priv Gr@bber\Priv\node_modules\←[4mjs-confuser←[24m\dist\traverse.js:59:18)
    at walk (C:\Users\onmaz\Downloads\Krex Priv Gr@bber\Priv\node_modules\←[4mjs-confuser←[24m\dist\traverse.js:76:15)
    at walk (C:\Users\onmaz\Downloads\Krex Priv Gr@bber\Priv\node_modules\←[4mjs-confuser←[24m\dist\traverse.js:65:13)
    at walk (C:\Users\onmaz\Downloads\Krex Priv Gr@bber\Priv\node_modules\←[4mjs-confuser←[24m\dist\traverse.js:76:15)
    at walk (C:\Users\onmaz\Downloads\Krex Priv Gr@bber\Priv\node_modules\←[4mjs-confuser←[24m\dist\traverse.js:76:15)

/Users/michael/Desktop/test/node_modules/js-confuser/dist/index.js:89
    throw new TypeError("code must be type string");
          ^

TypeError: code must be type string
    at JsConfuser (/Users/michael/Desktop/test/node_modules/js-confuser/dist/index.js:89:11)
    at Object.obfuscate (/Users/michael/Desktop/test/node_modules/js-confuser/dist/index.js:56:16)
    at Object.<anonymous> (/Users/michael/Desktop/test/index.js:3:12)
    at Module._compile (node:internal/modules/cjs/loader:1126:14)
    at Object.Module._extensions..js (node:internal/modules/cjs/loader:1180:10)
    at Module.load (node:internal/modules/cjs/loader:1004:32)
    at Function.Module._load (node:internal/modules/cjs/loader:839:12)
    at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:81:12)
    at node:internal/main/run_main_module:17:47