Good evening,
I’ve try the tricks but it doesn’t work 
https://paste.yunohost.org/raw/otoxamonim
I tried again after switching back.
[Error] Upgrade failed.
E: Unable to locate package roundcube-ynh-deps
https://paste.yunohost.org/raw/oferilocoy
I don’t know but naively maybe a problem about php version and dependencies (7.3 | 7.4) or related with the plugins versions ?
Thank you for the time (your time) spent to try to solve the problem.
ppr