C:\Other\MEGA\cloudProjects\Markup#1>gulp watch
[23:50:18] Using gulpfile C:\Other\MEGA\cloudProjects\Markup#1\gulpfile.js
[23:50:18] Starting 'browser-sync'...
[23:50:18] Finished 'browser-sync' after 911 ms
[23:50:18] Starting 'sass'...
[23:50:18] Starting 'scripts'...
[23:50:18] Starting 'pug'...
[23:50:19] Finished 'pug' after 351 ms

events.js:160
      throw er; // Unhandled 'error' event
      ^
Error: app\sass\style.sass
Error: Invalid CSS after "...argin-bottom: 5": expected expression (e.g. 1px, bold), was "0px; } } }"
        on line 151 of app/sass/style.sass
>>       margin-bottom: 50px; } } }
   ----------------------^

    at options.error (C:\Other\MEGA\cloudProjects\Markup#1\node_modules\node-sass\lib\index.js:291:26)