Looking for logging into the Owncloud Blank After site and are not getting the correct working link for it? In such a case, you can use the links given here by searching your desired login page in the search box. If the page is present on our website then you will get all the links related to the Owncloud Blank After site. After that you can login as usual with your login credentials.
https://forum.owncloud.org/viewtopic.php%3Ft%3D10110
https://central.owncloud.org/t/owncloud-10-blank-page-after-upgrade-from-9/18088
https://help.nextcloud.com/t/white-page-after-login/28828
https://help.nextcloud.com/t/blank-page-after-migrating-from-owncloud-10-to-nextcloud-12/35849
https://github.com/owncloud/core/issues/19965
https://github.com/owncloud/core/issues/12095
https://github.com/owncloud/core/issues/13986
https://github.com/nextcloud/server/issues/180
https://github.com/owncloud/core/issues/23616
https://stackoverflow.com/questions/39629107/recently-updated-owncloud-now-giving-a-blank-screen
https://github.com/owncloud/core/issues/14023
https://forums.freenas.org/index.php%3Fthreads/owncloud-update-from-7-0-4-to-8-0-5-web-page-blank.36100/
https://forum.openmediavault.org/index.php/Thread/7563-OwnCloud-blank-page-and-http-500-after-a-bad-app/