AEM Useradmin and Miscadmin pages are blank , and Also search inside CRX/DE home and CRX Package Manager search is not working

Yeah looks like it is same for me traversingGET /libs/settings/granite/operations/diagnosis/granite_status.zip HTTP/1.1]  What can we do here?

on the dashboard it is showing 100MB but the downloaded file from the browser is just 900 KB, even after downloading the file, the file does'nt open up

If I dont have access to system/console, I tried On Diagnosis page , empty file is getting downloaded. Any thoughts on it?

I tried login with Admin credentials and tried to download logs from below URL, System Diagnosis Page Download a system status ZIP export from the system diagnosis page: https://localhost:4502/libs/granite/operations/content/diagnosis.html (select Download Status ZIP). but the size of logs file is s...

All the bundles on publisher are active

07.08.2023 11:54:17.283 *ERROR* [10.242.69.100 [1691409257199] GET /content/XXX/en_us/navigation.html HTTP/1.1] com.adobe.cq.sightly.WCMUsePojo Failed to activate Use classjava.lang.NullPointerException: null            at com.adobe.cq.sightly.WCMUsePojo.init(WCMUsePojo.java:86) [com.adobe.cq.sightl...

Yes all the bundles are in Active state

com/day/cq/wcm/api/PageCannot serve request to

Content pages are blank after upgrading the AEM instance to AEM service pack 6.5.15