Docusarus compile error

docusarus_compile_errror.txt

johnweb website (master) $ yarn build
yarn run v1.22.4
$ docusaurus build
Creating an optimized production build...

✔ Client
  Compiled successfully in 23.92s

✖ Server
  Compiled with some errors in 28.24s



ReferenceError: Buffer is not definedReferenceError: window is not defined
(undefined) ReferenceError: Buffer is not defined
    at Object.<anonymous> (main:21266:20)
    at __webpack_require__ (main:21:30)
    at Object.<anonymous> (main:37687:26)
    at __webpack_require__ (main:21:30)
    at Object.<anonymous> (main:126472:30)
    at __webpack_require__ (main:21:30)
    at Object.<anonymous> (main:49643:18)
    at __webpack_require__ (main:46383:30)
    at Object.<anonymous> (main:49414:14)
    at Object.<anonymous> (main:49637:30)
(undefined) ReferenceError: window is not defined
    at Object.<anonymous> (main:76350:52)
    at __webpack_require__ (main:21:30)
    at Object.<anonymous> (main:46227:41)
    at __webpack_require__ (main:21:30)
    at Module.<anonymous> (main:31688:74)
    at __webpack_require__ (main:21:30)
    at main:138370:5427
Error: Failed to compile with errors.
    at /home/ec2-user/emasset-docs/website/node_modules/@docusaurus/core/lib/commands/build.js:38:24
    at finalCallback (/home/ec2-user/emasset-docs/website/node_modules/webpack/lib/MultiCompiler.js:254:12)
    at /home/ec2-user/emasset-docs/website/node_modules/webpack/lib/MultiCompiler.js:277:6
    at done (/home/ec2-user/emasset-docs/website/node_modules/neo-async/async.js:2931:13)
    at runCompilers (/home/ec2-user/emasset-docs/website/node_modules/webpack/lib/MultiCompiler.js:181:48)
    at /home/ec2-user/emasset-docs/website/node_modules/webpack/lib/MultiCompiler.js:188:7
    at /home/ec2-user/emasset-docs/website/node_modules/webpack/lib/MultiCompiler.js:270:7
    at finalCallback (/home/ec2-user/emasset-docs/website/node_modules/webpack/lib/Compiler.js:257:39)
    at /home/ec2-user/emasset-docs/website/node_modules/webpack/lib/Compiler.js:273:13
    at AsyncSeriesHook.eval [as callAsync] (eval at create (/home/ec2-user/emasset-docs/website/node_modules/tapable/lib/HookCodeFactory.js:33:10), <anonymous>:42:1)
    at AsyncSeriesHook.lazyCompileHook (/home/ec2-user/emasset-docs/website/node_modules/tapable/lib/Hook.js:154:20)
    at onCompiled (/home/ec2-user/emasset-docs/website/node_modules/webpack/lib/Compiler.js:271:21)
    at /home/ec2-user/emasset-docs/website/node_modules/webpack/lib/Compiler.js:681:15
    at AsyncSeriesHook.eval [as callAsync] (eval at create (/home/ec2-user/emasset-docs/website/node_modules/tapable/lib/HookCodeFactory.js:33:10), <anonymous>:6:1)
    at AsyncSeriesHook.lazyCompileHook (/home/ec2-user/emasset-docs/website/node_modules/tapable/lib/Hook.js:154:20)
    at /home/ec2-user/emasset-docs/website/node_modules/webpack/lib/Compiler.js:678:31
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.
johnweb website (master) $