Collabora Online - Built-in CODE Server: unable to open files

Hi,
I installed Collabora Online - Built-in CODE Server + Collabora Online on Ubuntu 20.04 + apache.
When I click on a document file (libreoffice or office), a rotating spinner appears for 10-15 seconds, then the browser returns to the file list. No editor is open.

In settings β†’ Administration β†’ Collabora online the server is marked reachable (online, green check).

This is what I find in /var/log/nextcloud/nextcloud.log

{"reqId":"2xB0AjZtRlBJk7io2fLj","level":3,"time":"2021-03-21T20:59:21+00:00","remoteAddr":"192.168.162.2","user":"ncadmin","app":"richdocuments","method":"GET","url":"/index.php/apps/richd
ocuments/index?fileId=5&requesttoken=WGNd1SbOSidnq4s6r1rcph%2Bkn30vV4iQWgdEceypXh4%3D%3ACgc3hFyAehU1%2BMxL6iiG3y%2FWxTllG8XRFmYqIY3MaX8%3D","message":{"Exception":"Exception","Message":"Co
uld not find urlsrc in WOPI","Code":0,"Trace":[{"file":"/var/www/nextcloud/apps/richdocuments/lib/TokenManager.php","line":217,"function":"getUrlSrc","class":"OCA\\Richdocuments\\WOPI\\Par
ser","type":"->"},{"file":"/var/www/nextcloud/apps/richdocuments/lib/Controller/DocumentController.php","line":256,"function":"getToken","class":"OCA\\Richdocuments\\TokenManager","type":"
->","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/nextcloud/lib/private/AppFramework/Http/Dispatcher.php","line":170,"function":"index","class":"OCA\\Richdocuments\\C
ontroller\\DocumentController","type":"->"},{"file":"/var/www/nextcloud/lib/private/AppFramework/Http/Dispatcher.php","line":100,"function":"executeController","class":"OC\\AppFramework\\H
ttp\\Dispatcher","type":"->"},{"file":"/var/www/nextcloud/lib/private/AppFramework/App.php","line":137,"function":"dispatch","class":"OC\\AppFramework\\Http\\Dispatcher","type":"->"},{"fil
e":"/var/www/nextcloud/lib/private/AppFramework/Routing/RouteActionHandler.php","line":47,"function":"main","class":"OC\\AppFramework\\App","type":"::"},{"function":"__invoke","class":"OC\
\AppFramework\\Routing\\RouteActionHandler","type":"->"},{"file":"/var/www/nextcloud/lib/private/Route/Router.php","line":297,"function":"call_user_func"},{"file":"/var/www/nextcloud/lib/b
ase.php","line":1010,"function":"match","class":"OC\\Route\\Router","type":"->"},{"file":"/var/www/nextcloud/index.php","line":37,"function":"handleRequest","class":"OC","type":"::"}],"Fil
e":"/var/www/nextcloud/apps/richdocuments/lib/WOPI/Parser.php","Line":54,"CustomMessage":"--"},"userAgent":"Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:86.0) Gecko/20100101 Firefox/86.0","v
ersion":"19.0.9.1"}

and this is the apache server error log:

[Sun Mar 21 21:59:15.770080 2021] [php7:notice] [pid 8413] [client 127.0.0.1:51230] richdocumentscode (proxy.php) error exit, PID: 8413, Message: appimage_not_executable
[Sun Mar 21 21:59:15.979099 2021] [php7:notice] [pid 8153] [client 127.0.0.1:51236] richdocumentscode (proxy.php) error exit, PID: 8153, Message: appimage_not_executable
[Sun Mar 21 21:59:16.208603 2021] [php7:notice] [pid 8163] [client 127.0.0.1:51242] richdocumentscode (proxy.php) error exit, PID: 8163, Message: appimage_not_executable
[Sun Mar 21 21:59:16.451187 2021] [php7:notice] [pid 8165] [client 127.0.0.1:51248] richdocumentscode (proxy.php) error exit, PID: 8165, Message: appimage_not_executable
[Sun Mar 21 21:59:20.462217 2021] [php7:notice] [pid 8163] [client 127.0.0.1:51272] richdocumentscode (proxy.php) error exit, PID: 8163, Message: appimage_not_executable
[Sun Mar 21 21:59:21.327516 2021] [php7:notice] [pid 8153] [client 127.0.0.1:51286] richdocumentscode (proxy.php) error exit, PID: 8153, Message: appimage_not_executable
[Sun Mar 21 21:59:37.015605 2021] [php7:notice] [pid 8165] [client 127.0.0.1:51308] richdocumentscode (proxy.php) error exit, PID: 8165, Message: appimage_not_executable

What could be going wrong ?
Which appimage is not executable?

Thank you

Hi, same as @giox069 here.

Ubuntu 18.04.5
NC 20.0.9
Collabora Online - Built-in CODE Server 6.4.806 (too many bugs with 6.4.10)
Collabora Online 3.8.3

@giox069 did you open a bug on Issues Β· CollaboraOnline/richdocumentscode Β· GitHub?

I don’t see the same apache2 errors, but things like:

Security: loolmount incorrect user-name, other than 'lool'
Aborting.
[Thu Jul 22 11:17:28.305714 2021] [php7:notice] [pid 6799] [client A.B.C.D:20836] richdocumentscode (proxy.php) error exit, PID: 6799, Message: No content in reply from loolwsd. Is SSL enabled in error ?