TypeError: /usr/src/app/views/mixins/menupost.pug:124
   122|                       if (product.minPrice.salePrice || product.minPrice.price) >= 3000000
   123|                         .inline-button.second-button
 > 124|                           a(href=`/mua-tra-gop-${product.category.parent.slug}/${product.slug}`) Trả góp
   125| mixin postList(posts)
   126|   .col-xs-12.hidden-lg-up
   127|     h4.mobile-title.text-uppercase Tin mới

Cannot read property 'slug' of null
   at Object.eval (eval at wrap (/usr/src/app/node_modules/pug-runtime/wrap.js:6:10), <anonymous>:518:93)
   at Object.pug_interp [as blockCat] (eval at wrap (/usr/src/app/node_modules/pug-runtime/wrap.js:6:10), <anonymous>:611:4)
   at eval (eval at wrap (/usr/src/app/node_modules/pug-runtime/wrap.js:6:10), <anonymous>:1530:23)
   at template (eval at wrap (/usr/src/app/node_modules/pug-runtime/wrap.js:6:10), <anonymous>:2367:72)
   at Object.exports.renderFile (/usr/src/app/node_modules/pug/lib/index.js:427:38)
   at Object.exports.renderFile (/usr/src/app/node_modules/pug/lib/index.js:417:21)
   at View.exports.__express [as engine] (/usr/src/app/node_modules/pug/lib/index.js:464:11)
   at View.render (/usr/src/app/node_modules/express/lib/view.js:135:8)
   at tryRender (/usr/src/app/node_modules/express/lib/application.js:640:10)
   at Function.render (/usr/src/app/node_modules/express/lib/application.js:592:3)
   at ServerResponse.render (/usr/src/app/node_modules/express/lib/response.js:1012:7)
   at ServerResponse.res.render (/usr/src/app/api/bootstrap.js:104:16)
   at RenderService.render (/usr/src/app/api/services/RenderService.js:28:17)
   at /usr/src/app/api/controllers/PostController.js:168:26
   at /usr/src/app/node_modules/async/dist/async.js:473:16
   at iteratorCallback (/usr/src/app/node_modules/async/dist/async.js:1064:13)