check out the logs, there should be plenty of error messages there, try to fix them

there should be a Logs tab somewhere in your project dashboard

Error: invariant: Expected pageData to be a string for app data request but received undefined. This is a bug in Next.js.
at NextNodeServer.renderToResponseWithComponentsImpl (/var/task/node_modules/next/dist/server/base-server.js:1275:27)
at process.processTicksAndRejections (node:internal/process/task_queues:105:5)
at async NextNodeServer.renderPageComponent (/var/task/node_modules/next/dist/server/base-server.js:1334:24)
at async NextNodeServer.renderToResponseImpl (/var/task/node_modules/next/dist/server/base-server.js:1365:32)
at async NextNodeServer.pipeImpl (/var/task/node_modules/next/dist/server/base-server.js:642:25)
at async Object.fn (/var/task/node_modules/next/dist/server/next-server.js:1145:21)
at async Router.execute (/var/task/node_modules/next/dist/server/router.js:315:32)
at async NextNodeServer.runImpl (/var/task/node_modules/next/dist/server/base-server.js:616:29)
at async NextNodeServer.handleRequestImpl (/var/task/node_modules/next/dist/server/base-server.js:547:20) {
page: '/ct/flipkart-advertising-ppc-services/in/australia/st/perth/a/sinagra'
}

I am getting this same error on all the pages following this route
I tried resolving this but doesn't get desired results

then this is what's causing the elevated error rates. without a reproduction i can't help much with resolving this error though – but if you manage to resolve it, the error rate should dive down

I was using next version 13.4.5.... does the latest version contains this error? should I try updating my project to latest version and test?

invariant errors indicate nextjs bugs. more recent versions may have fixed the bug – so yes, i do recommend upgrading