I've just updated to v11.15 (from v11.7).
As site admin, when I click on the page 'System events', tab 'Notification', I have a blank page.
Here is the trace in nginx log file:
2020/06/10 16:51:05 [error] 2553#0: *1207 FastCGI sent in stderr: "PHP message: PHP Fatal error: Uncaught Tuleap\Layout\IncludeAssetsManifestException: Asset /usr/share/tuleap/src/www/admin/system_events/../assets/core/manifest.json doesn't exist. Did you run `npm run build` ? in /usr/share/tuleap/src/common/layout/IncludeAssets.php:100
Stack trace:
#0 /usr/share/tuleap/src/common/layout/IncludeAssets.php(82): Tuleap\Layout\IncludeAssets->loadFromManifest()
#1 /usr/share/tuleap/src/common/layout/IncludeAssets.php(54): Tuleap\Layout\IncludeAssets->getHashedName('site-admin-syst...')
#2 /usr/share/tuleap/src/www/admin/system_events/notifications.php(161): Tuleap\Layout\IncludeAssets->getFileURL('site-admin-syst...')
#3 {main}
thrown in /usr/share/tuleap/src/common/layout/IncludeAssets.php on line 100" while reading response header from upstream, client: 192.168.202.109, server: tuleap-rec.si.c-s.fr, request: "GET /admin/system_events/notifications.php HTTP/1.1", upstream: "
fastcgi://127.0.0.1:9000", host: "tuleap-rec.si.c-s.fr", referrer: "
https://tuleap-rec.si.c-s.fr/admin/system_events/?filter_status%5B%5D=ERROR&queue=default&filter_type%5B%5D=0"