Here is my build logs of vercel

This is the browser console
938-8b61e8b4c0b74082.js:1 TypeError: Cannot read properties of null (reading '_id') at v (layout-fbebac2389882204.js:1:10562) at rb (fd9d1056-ed63d038523d38b3.js:1:40329) at lA (fd9d1056-ed63d038523d38b3.js:1:59077) at iU (fd9d1056-ed63d038523d38b3.js:1:117013) at o2 (fd9d1056-ed63d038523d38b3.js:1:94369) at fd9d1056-ed63d038523d38b3.js:1:94191 at o1 (fd9d1056-ed63d038523d38b3.js:1:94198) at oV (fd9d1056-ed63d038523d38b3.js:1:91685) at oB (fd9d1056-ed63d038523d38b3.js:1:91110) at MessagePort.w (938-8b61e8b4c0b74082.js:1:99165) window.console.error @ 938-8b61e8b4c0b74082.js:1

Here is the link to my app
https://socialmedia-qr3brnrhs-aryan-ranjans-projects-b336b5a7.vercel.app/

Initially i deployed and got the client error. Then i made a new github repo and just cloned it with my original repo and made new deployment on vercel.
I have been working on it for 3-4 days now.
And now the signup and login page comes, but after signing up or logging in, client side error comes.

Here is my public github repository for it.
https://github.com/Aryan011001/ConnectSphereclone

Please help me.
Thank you!