Error when starting a genetic simulation on actual config (macos)

[BobTheTool]

I'm submitting a ...
[X] bug report
[ ] question about the decisions made in the repository

Action taken (what you did)
Start my config.js on gekkoga genetic plugin (mac osx 10.13

Expected result (what you hoped would happen)

launch backtest for my strategy and help me to improve it.

Actual result (unexpected outcome)

gekkoga josephmichel$ node run -c config/config.js
internal/modules/cjs/loader.js:550
throw err;
^

Error: Cannot find module './web/isWindows.js'
at Function.Module._resolveFilename (internal/modules/cjs/loader.js:548:15)
at Function.Module._load (internal/modules/cjs/loader.js:475:25)
at Module.require (internal/modules/cjs/loader.js:598:17)
at require (internal/modules/cjs/helpers.js:11:18)
at Object. (/Users/josephineboutron/gekko/gekkoga/config/config.js:282:16)
at Module._compile (internal/modules/cjs/loader.js:654:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:665:10)
at Module.load (internal/modules/cjs/loader.js:566:32)
at tryModuleLoad (internal/modules/cjs/loader.js:506:12)
at Function.Module._load (internal/modules/cjs/loader.js:498:3)
at Module.require (internal/modules/cjs/loader.js:598:17)
at require (internal/modules/cjs/helpers.js:11:18)
at Object. (/Users/josephineboutron/gekko/gekkoga/run.js:16:16)
at Module._compile (internal/modules/cjs/loader.js:654:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:665:10)
at Module.load (internal/modules/cjs/loader.js:566:32)
at tryModuleLoad (internal/modules/cjs/loader.js:506:12)
at Function.Module._load (internal/modules/cjs/loader.js:498:3)
at Function.Module.runMain (internal/modules/cjs/loader.js:695:10)
at startup (internal/bootstrap/node.js:201:19)
at bootstrapNodeJSCore (internal/bootstrap/node.js:516:3)

Other information (e.g. detailed explanation, stacktraces, related issues, suggestions how to fix, links for us to have context, eg. stackoverflow, etc)

isWindows.js is actually here in the gekko/web folder