what is meaning of this error when landed in the main page?

[simhead]

This is using tag: v7.7.0.

• Infra installation - done
• install.sh - done
• postman collection - done

When I go to the main landing page I am getting this error:

• {"message":"Invalid signature"}

Request:

GET /learner/data/v1/system/settings/get/sunbird HTTP/1.1
Host: sunbird-ed-terra.oke.ocloud.today
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:143.0) Gecko/20100101 Firefox/143.0
Accept: application/json
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate, br, zstd
X-Source: web
ts: 2025-09-08T18:53:50+10:00
X-msgid: a31427f1-74b9-4e8d-befa-f3cb58898d00
X-Request-ID: a31427f1-74b9-4e8d-befa-f3cb58898d00
X-App-Version: 7.0.0
X-Session-ID: ca7eadea-3895-4d61-94de-9f3ab327ef91
X-Device-ID: 145785e16d3707eb384536852930931a
X-Org-code: 0143959449748111360
X-Channel-Id: 0143959449748111360
X-App-Id: staging.sunbird.portal
Connection: keep-alive
Referer: https://sunbird-ed-terra.oke.ocloud.today/
Cookie: connect.sid=s%3A9h1JN1ELehE9cFqw4_kdzatB2iQIrtIy.hpRIYgRZIkGEqvQ9gqmkMcF%2F9IxQF7T4bXg6moRrUZ4
Sec-Fetch-Dest: empty
Sec-Fetch-Mode: cors
Sec-Fetch-Site: same-origin

Response:

HTTP/1.1 403 Forbidden
Date: Mon, 08 Sep 2025 08:53:50 GMT
Content-Type: application/json; charset=utf-8
Content-Length: 32
Connection: keep-alive
X-DNS-Prefetch-Control: off
X-Frame-Options: SAMEORIGIN
Strict-Transport-Security: max-age=15552000; includeSubDomains
X-Download-Options: noopen
X-Content-Type-Options: nosniff
X-XSS-Protection: 1; mode=block
access-control-allow-origin: *
ETag: W/"20-WulrU88OEj2xj7D9F+pKyZxcbRA"

What could be missing?

[simhead]

resolved by reinstalling from scratch