TypeError: /home/ec2-user/atoz/server/views/blogpost.html:200
   198|             <article class="post-single">
   199|             <div class="post-meta">
>> 200|               <span> <img src="/public/assets/images/noimg.png" alt="author"> <%= postdet[0].username %> </span>
   201|               <span> <i class="far fa-calendar"></i> <%= postdet[0].datetime %></span>
   202|  
   203|             </div>

Cannot read property 'username' of undefined
   at eval (/home/ec2-user/atoz/server/views/blogpost.html:66:37)
   at blogpost (/home/ec2-user/atoz/node_modules/ejs/lib/ejs.js:656:17)
   at tryHandleCache (/home/ec2-user/atoz/node_modules/ejs/lib/ejs.js:254:36)
   at View.exports.renderFile [as engine] (/home/ec2-user/atoz/node_modules/ejs/lib/ejs.js:459:10)
   at View.render (/home/ec2-user/atoz/node_modules/express/lib/view.js:135:8)
   at tryRender (/home/ec2-user/atoz/node_modules/express/lib/application.js:640:10)
   at Function.render (/home/ec2-user/atoz/node_modules/express/lib/application.js:592:3)
   at ServerResponse.render (/home/ec2-user/atoz/node_modules/express/lib/response.js:1012:7)
   at exports.blogpostbyid (/home/ec2-user/atoz/server/controllers/userController.js:1188:9)
   at runMicrotasks (<anonymous>)
   at processTicksAndRejections (internal/process/task_queues.js:97:5)