Nextcloud office infinite loading


I think my problem has been around for a while but I haven’t found any solutions.
I used the Nextcloud instant install on an Apache server and like many other people, I can’t open documents with Nextcloud office even though the collabora server is green in the settings.


If anyone has managed to solve this problem, thank you in advance.
Nextcloud V27.1.3
Nextcloud Office V8.2.2

Best regards