Hello every one. 
My YunoHost server
Hardware: online server
YunoHost version: 11.2.9.1
I have access to my server : Through the webadmin
Are you in a special context or did you perform some particular tweaking on your YunoHost instance ? : i don’t think so
If your request is related to an app, specify its name and version: :
YNH_APP_CURRENT_VERSION: 25.0.6~ynh1
YNH_APP_ID: nextcloud
YNH_APP_INSTANCE_NAME: nextcloud
YNH_APP_INSTANCE_NUMBER: ‘1’
YNH_APP_MANIFEST_VERSION: 27.1.4~ynh1
YNH_APP_PACKAGING_FORMAT: ‘1.0’
YNH_APP_UPGRADE_TYPE: UPGRADE_APP
YNH_ARCH: amd64
YNH_CWD: /var/cache/yunohost/app_tmp_work_dirs/app_jj5qfmns/scripts
YNH_DEBIAN_VERSION: bullseye
YNH_INTERFACE: api
YNH_STDRETURN: /tmp/tmp1f3cbsue/stdreturn
error: “Une erreur s’est produite durant l’ex\xE9cution du script de mise \xE0 niveau
\ de l’application”
interface: api
operation: app_upgrade
parent: null
related_to:
-
- app
- nextcloud
success: false
Description of my issue
First, i should say thank you for your time. 
I tried to run an upgrade of my Nextcloud Instance 25.0.6 to 27.1.4 but it failed. Logs say
datadir=/home/yunohost.app/nextcloud/data
2023-12-28 09:26:11,465: DEBUG - + ‘[’ UPGRADE_APP == UPGRADE_APP ‘]’
2023-12-28 09:26:11,546: INFO - [#############+…] > Upgrading Nextcloud…
2023-12-28 09:26:11,546: DEBUG - + source upgrade.d/upgrade.last.sh
2023-12-28 09:26:11,547: DEBUG - ++ next_version=27.1.4
2023-12-28 09:26:11,547: DEBUG - ++ nextcloud_source_sha256=bec65f2166b82c9303baf476c1e424f71aa196dad010ffe4c0c39d03990d594c
2023-12-28 09:26:11,547: DEBUG - + last_version=27.1.4
2023-12-28 09:26:11,547: DEBUG - + last_major_version=27
2023-12-28 09:26:11,547: DEBUG - + chown -R nextcloud: /var/www/nextcloud /home/yunohost.app/nextcloud/data
2023-12-28 09:26:13,830: DEBUG - + exec_occ -V
2023-12-28 09:26:13,833: DEBUG - + ‘[’ 25 = last ‘]’
2023-12-28 09:26:13,834: DEBUG - + ‘[’ 25 -ge 24 ‘]’
2023-12-28 09:26:13,834: DEBUG - + NEXTCLOUD_PHP_VERSION=8.2
2023-12-28 09:26:13,834: DEBUG - + cd /var/www/nextcloud
2023-12-28 09:26:13,834: DEBUG - + ynh_exec_as nextcloud php8.2 --define apc.enable_cli=1 occ --no-interaction --no-ansi -V
2023-12-28 09:26:13,834: DEBUG - + local user=nextcloud
2023-12-28 09:26:13,835: DEBUG - + shift 1
2023-12-28 09:26:13,835: DEBUG - ++ whoami
2023-12-28 09:26:13,835: DEBUG - + [[ nextcloud = root ]]
2023-12-28 09:26:13,835: DEBUG - + sudo -u nextcloud php8.2 --define apc.enable_cli=1 occ --no-interaction --no-ansi -V
2023-12-28 09:26:13,929: DEBUG - This version of Nextcloud is not compatible with PHP>=8.2.
You are currently running 8.2.14.+ ynh_exit_properly
So, i went see my tools on my webadmin interface. I can see this versions :
- php 7.4 (Why ? O_o)
- php 8.0 (again, why ? O_o)
- php 8.1 (ok)
- php 8.2 (good)
No php 8.3.
I went on Nextcloud website to look, and PHP 8.2 should work. Like 8.1 or 8.3.
Bonus question : Should i deactivate old PHP versions ?
Thank you again for your time. 