index.js returning 404 upon npm run start

index.js is returning a 404 status upon running npm run start or npm start.
Browser: Screen Shot 2020-05-09 at 10 47 44 AM
Terminal:
Junhas-MacBook-Air:RubiksCube junha$ npm start

> rubikscube@1.0.0 start /Users/junha/cave/RubiksCube
> npm run build-css & npm run build && npm run prod

> rubikscube@1.0.0 build-css /Users/junha/cave/RubiksCube
> sass --watch client/src/main.scss client/dist/main.css

> rubikscube@1.0.0 build /Users/junha/cave/RubiksCube
> cross-env NODE_env=production webpack -p --progress --mode production

Sass is watching for changes. Press Ctrl-C to stop.

Hash: 3db9406f002e74a532a3
Version: webpack 4.42.0
Time: 9286ms
Built at: 05/09/2020 10:43:37 AM
                               Asset      Size  Chunks                    Chunk Names
                         0.bundle.js  12.9 KiB       0  [emitted]         
                         1.bundle.js   521 KiB       1  [emitted]  [big]  
                         4.bundle.js   213 KiB       4  [emitted]         
49ee6385eb13c644371695e21f0552e1.png    13 KiB          [emitted]         
4d8d062cf1100610ba784a03aa4560e6.png  12.9 KiB          [emitted]         
                         5.bundle.js  45.1 KiB    5, 3  [emitted]         
5e4b4750e24a9ebece59347fbedb89c1.png    13 KiB          [emitted]         
                         6.bundle.js    12 KiB       6  [emitted]         
6089d4f1aae968613db940e5fd9d35a2.png  11.4 KiB          [emitted]         
6550753c1866ac6355cffd1a4a3b97d0.png  10.9 KiB          [emitted]         
69608dadd039af2062ec4247a82a947a.png  11.5 KiB          [emitted]         
                         7.bundle.js  4.45 KiB       7  [emitted]         
                         8.bundle.js  1.95 KiB       8  [emitted]         
80d55d905ac3c63a8dc87054d53b9ee7.png  12.9 KiB          [emitted]         
903b32de15b16282e3a2803d6f1c8e55.png  12.9 KiB          [emitted]         
9dd8093e8a65ceec818cc8d1dd1b0300.png    13 KiB          [emitted]         
                       app.bundle.js   152 KiB       2  [emitted]         app
b58d6b4e0700b93423dbdf816ec339a5.png  2.57 KiB          [emitted]         
b7a773c0273b6d979948ce8f6936be0d.png  11.5 KiB          [emitted]         
e1f57c2620ce717c0651f818e1dc044a.png   118 KiB          [emitted]         
e4e113d90ae981bb93a4de62065655bd.png  11.5 KiB          [emitted]         
e67235a12ff93b79ae6f108390fe8fb8.png  11.4 KiB          [emitted]         
ea4e87e2a5cb884e7cef8562540cbb4c.png  11.5 KiB          [emitted]         
             minimaxSolver.bundle.js  9.88 KiB       3  [emitted]         minimaxSolver
Entrypoint app = app.bundle.js
Entrypoint minimaxSolver = minimaxSolver.bundle.js
  [2] ./client/src/rubiksHelpers/cube-functions.js 8.81 KiB {3} {5} [built]
 [10] ./client/src/rubiksHelpers/cube-side-mapping.js 2.53 KiB {3} {5} {6} [built]
 [11] ./client/src/rubiksHelpers/minimaxSolver.js 8.49 KiB {3} {5} [built]
 [12] ./client/src/rubiksHelpers/solutionCube.js 2.69 KiB {3} {5} [built]
 [23] ./client/src/index.jsx + 12 modules 51.3 KiB {2} [built]
      | ./client/src/index.jsx 255 bytes [built]
      | ./client/src/app.jsx 4.64 KiB [built]
      |     + 11 hidden modules
 [32] ./node_modules/@material-ui/core/esm/styles/withStyles.js + 1 modules 4.7 KiB {4} [built]
      |    2 modules
 [50] ./client/src/utilities/cubeBuilderUtils/cubeBuilderUtilities.js 630 bytes {5} {6} [built]
 [52] ./client/src/images/Rubiks_Logo.png 82 bytes {6} {7} [built]
 [56] ./client/src/images/settings_grey.png 82 bytes {5} [built]
 [78] ./client/src/images sync ^\.\/rubiks_directions_.*\.png$ 595 bytes {5} [built]
 [79] ./client/src/images/rubiks_directions_B.png 82 bytes {5} [optional] [built]
 [80] ./client/src/images/rubiks_directions_Bi.png 82 bytes {5} [optional] [built]
[111] ./client/src/images/Rubiks_Logo_SMOL.png 82 bytes {5} [built]
[184] ./client/src/components/Visualize/RubiksInteractive.jsx + 12 modules 58.5 KiB {5} [built]
      | ./client/src/utilities/keyListenUtils/keyListeners.js 1.69 KiB [built]
      | ./client/src/utilities/moveMakingUtils/MoveQueue.js 2.75 KiB [built]
      |     + 11 hidden modules
[187] ./client/src/components/Landing/Landing.jsx + 1 modules 13.6 KiB {6} [built]
      |    2 modules
    + 240 hidden modules

WARNING in asset size limit: The following asset(s) exceed the recommended size limit (244 KiB).
This can impact web performance.
Assets: 
  1.bundle.js (521 KiB)

> rubikscube@1.0.0 prod /Users/junha/cave/RubiksCube
> cross-env NODE_ENV=production node server/index.js

Listening on port 8000
rogersanick / rubikscubesolver

index.js returning 404 upon npm run start #5
