Synapse upgrade failed with error

I had the same problem. I had an error trying to upgrade synapse.
I did the upgrade to yunohost 1.2.7

# yunohost --version
yunohost: 
  repo: stable
  version: 11.2.7
yunohost-admin: 
  repo: stable
  version: 11.2.3
moulinette: 
  repo: stable
  version: 11.2
ssowat: 
  repo: stable
  version: 11.2

But it seems that Synapse was completely removed during the upgrade.
There is my logs : https://paste.yunohost.org/raw/tagosogisa

I tried to restore the pre-upgrade backup but it doesn’t work. (Because the version of yunohost was “too old” ?)

The directory “/home/yunohost/app/synapse” doesn’t exist anymore.

Can I reinstall synapse ? Will I get my data back?