Cannot open Nextcloud Office document (Collabora)

Running Nextcloud on Yunohost, I can’t open any office document.
Collabora & CODE seem properly installed.,


I wondered if tit was a memory issue, but, am not sure :

:~# sudo inxi -pmjS --cpu
System:    Host: Kernel: 5.10.0-18-amd64 x86_64 bits: 64 Console: tty 0 Distro: Debian GNU/Linux 11 (bullseye) 
Memory:    RAM: total: 976.6 MiB used: 769.2 MiB (78.8%) 
           Array-1: capacity: 1 GiB slots: 1 EC: Multi-bit ECC 
           Device-1: DIMM 0 size: 1 GiB speed: 
CPU:       Info: Single Core model: QEMU Virtual version 2.5+ bits: 64 type: MCP L2 cache: 16 MiB 
           Speed: 2494 MHz min/max: N/A Core speed (MHz): 1: 2494 
Partition: ID-1: / size: 24.44 GiB used: 7.87 GiB (32.2%) fs: ext4 dev: /dev/vda1 
Swap:      ID-1: swap-1 type: file size: 3 GiB used: 216.9 MiB (7.1%) file: /swapfile 
:~# sudo sysctl -p /etc/sysctl.d/99-swappiness.conf
vm.swappiness = 10
vm.vfs_cache_pressure = 200

What should I do to find the issue cause and correct it ?

Yep, definitely not enough memory. I’d recommend at least 4gb if you intend to use it with 1 or more users.

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