Crash after upgrade from 2.4.15 to 2.5.25

Hi, i have an ubuntu server 20.04.5 LTS with urbackup server 2.4.15 installed, everything working fast and wonderful.
when i update it to 2.5.25 it starts for a minute and then crash.
which is the problem, i do something wrong? i install from uroni repo. when crash and recall urbacksrv run, it starts but at the end say me “segmentation fault (core dumped)”

What can i do?

2022-09-07 11:13:24: Starting HTTP-Server on port 55414
2022-09-07 11:13:24: HTTP: Server started up successfully!
2022-09-07 11:13:24: SQLite: recovered 4850 frames from WAL file /var/urbackup/backup_server.db-wal code: 283
2022-09-07 11:13:24: SQLite: recovered 5 frames from WAL file /var/urbackup/backup_server_link_journal.db-wal code: 283
2022-09-07 11:13:24: SQLite: recovered 53 frames from WAL file /var/urbackup/backup_server_settings.db-wal code: 283
2022-09-07 11:13:24: SQLite: recovered 4850 frames from WAL file /var/urbackup/backup_server.db-wal code: 283
2022-09-07 11:13:24: SQLite: recovered 53 frames from WAL file /var/urbackup/backup_server_settings.db-wal code: 283
2022-09-07 11:13:24: SQLite: recovered 5 frames from WAL file /var/urbackup/backup_server_link_journal.db-wal code: 283
2022-09-07 11:13:24: Started UrBackup...
2022-09-07 11:13:24: Removing temporary files...
2022-09-07 11:13:24: Recreating temporary folder...
2022-09-07 11:13:25: Testing if backup destination can handle subvolumes and snapshots...
2022-09-07 11:13:25: Backup destination cannot handle subvolumes and snapshots. Snapshots disabled.
2022-09-07 11:13:25: Testing if backup destination can handle filesystem transactions...
2022-09-07 11:13:25: Testing for hardlinks in backup destination...
2022-09-07 11:13:25: Could create hardlink at backup destination. Hardlinks enabled.
2022-09-07 11:13:25: Testing for reflinks in backup destination...
2022-09-07 11:13:25: Reflink ioctl failed. errno=95
2022-09-07 11:13:25: Could not create reflink at backup destination. Reflinks disabled. Operation not supported (code: 95)
2022-09-07 11:13:25: Binding to interface ens18 (ipv4) for broadcasting...
2022-09-07 11:13:25: Broadcasting on ipv4 interface ens18 addr 192.168.1.249
2022-09-07 11:13:25: Binding to interface ens18 (ipv6) for broadcasting...
2022-09-07 11:13:25: Broadcasting on ipv6 interface ens18 addr fe80::b8cb:65ff:febc:e590
2022-09-07 11:13:25: InternetService: Server started up successfully!
2022-09-07 11:13:25: UrBackup Server start up complete.
2022-09-07 11:13:25: Server started up successfully!
2022-09-07 11:13:25: Looking for old Sessions... 0 sessions
2022-09-07 11:13:26: Downloading version file...
2022-09-07 11:13:26: Downloading version file...
2022-09-07 11:13:26: Downloading server version info...
2022-09-07 11:13:26: Downloading dataplan database...
2022-09-07 11:13:56: New Backupclient: PDL001
2022-09-07 11:13:56: New Backupclient: PDL010
2022-09-07 11:13:56: New Backupclient: PDL005
2022-09-07 11:13:56: New Backupclient: PDL011
2022-09-07 11:13:56: New Backupclient: PDL007
2022-09-07 11:13:56: New Backupclient: PDL016
2022-09-07 11:13:56: New Backupclient: PDL014
2022-09-07 11:13:56: New Backupclient: PDL012
2022-09-07 11:13:56: New Backupclient: PDL009
2022-09-07 11:13:56: New Backupclient: PDL002
2022-09-07 11:13:56: New Backupclient: PDL013
2022-09-07 11:13:56: New Backupclient: PDL018
2022-09-07 11:13:56: New Backupclient: PDL004
2022-09-07 11:13:56: New Backupclient: PDL006
2022-09-07 11:13:56: New Backupclient: PDL003
2022-09-07 11:13:56: New Backupclient: PDL020
2022-09-07 11:13:56: New Backupclient: PDL019
2022-09-07 11:13:56: New Backupclient: PDL015
2022-09-07 11:13:56: New Backupclient: PDL008
2022-09-07 11:13:57: Sending Identity to client "PDL001" failed. Retrying soon...
2022-09-07 11:13:57: Sending Identity to client "PDL011" failed. Retrying soon...
2022-09-07 11:13:57: Sending Identity to client "PDL015" failed. Retrying soon...
2022-09-07 11:13:57: Sending Identity to client "PDL002" failed. Retrying soon...
2022-09-07 11:13:57: Sending Identity to client "PDL006" failed. Retrying soon...
2022-09-07 11:13:57: Sending Identity to client "PDL014" failed. Retrying soon...
2022-09-07 11:13:57: Sending Identity to client "PDL020" failed. Retrying soon...
2022-09-07 11:13:57: Sending Identity to client "PDL009" failed. Retrying soon...
2022-09-07 11:13:57: Sending Identity to client "PDL004" failed. Retrying soon...
2022-09-07 11:13:57: Sending Identity to client "PDL008" failed. Retrying soon...
2022-09-07 11:13:57: Sending Identity to client "PDL019" failed. Retrying soon...
2022-09-07 11:13:57: Sending Identity to client "PDL013" failed. Retrying soon...
2022-09-07 11:13:57: Sending Identity to client "PDL005" failed. Retrying soon...
2022-09-07 11:13:57: Sending Identity to client "PDL012" failed. Retrying soon...
2022-09-07 11:13:57: Sending Identity to client "PDL010" failed. Retrying soon...
2022-09-07 11:13:57: Sending Identity to client "PDL018" failed. Retrying soon...
2022-09-07 11:13:57: Sending Identity to client "PDL016" failed. Retrying soon...
2022-09-07 11:13:57: Sending Identity to client "PDL007" failed. Retrying soon...
2022-09-07 11:13:57: Sending Identity to client "PDL003" failed. Retrying soon...
2022-09-07 11:13:57: Encrypting with key 6J6JqXl0B+Kz3UuKeRahCl8H9Vt9+R9Bu8vLidRBozvNfasMDALve7YVtSvZJ4td1WAYYwAAAABzCbTGluTgK8YEgFe5Jnjt (server)

I have exactly the same issue.

I installed 2.5.24 and that works for now.

But None help us on this issue. If i make a clean install it works but, i don’t want to re-do a clean installation.

I was able to ‘downgrade’ to 2.5.24 and that worked successfully with all settings and backup history in tact.

I downloaded the debian package from here Index of /Server/2.5.24 and used
sudo dpkg -i /absolute/path/to/deb/file
sudo apt-get install -f

There was a dependency I had missing thought that I had to install just through apt but that was it.

everything ok after update to 2.5.26