Can't install urbackup server on raspbian

I followed the instructions to install the server on a debian based OS on my raspberry pi 4 but unfortunately I get the following errors:

pi@naspberrypi:~ $ sudo dpkg -i urbackup-server_2.4.12_armhf.deb
Selecting previously unselected package urbackup-server.
(Reading database … 160393 files and directories currently installed.)
Preparing to unpack urbackup-server_2.4.12_armhf.deb …
Unpacking urbackup-server (2.4.12.0) …
dpkg: dependency problems prevent configuration of urbackup-server:
urbackup-server depends on sqlite3; however:
Package sqlite3 is not installed.
urbackup-server depends on libcurl3-nss (>= 7.23.1); however:
Package libcurl3-nss is not installed.

dpkg: error processing package urbackup-server (–install):
dependency problems - leaving unconfigured
Processing triggers for systemd (241-7~deb10u4+rpi1) …
Processing triggers for man-db (2.8.5-2) …
Errors were encountered while processing:
urbackup-server

pi@naspberrypi:~ $ sudo apt install -f
Reading package lists… Done
Building dependency tree
Reading state information… Done
Correcting dependencies… Done
The following additional packages will be installed:
libcurl3-nss sqlite3
Suggested packages:
sqlite3-doc
The following NEW packages will be installed:
libcurl3-nss sqlite3
0 upgraded, 2 newly installed, 0 to remove and 0 not upgraded.
1 not fully installed or removed.
Need to get 0 B/1,136 kB of archives.
After this operation, 2,884 kB of additional disk space will be used.
Do you want to continue? [Y/n] y
Selecting previously unselected package sqlite3.
(Reading database … 160530 files and directories currently installed.)
Preparing to unpack …/sqlite3_3.27.2-3_armhf.deb …
Unpacking sqlite3 (3.27.2-3) …
Selecting previously unselected package libcurl3-nss:armhf.
Preparing to unpack …/libcurl3-nss_7.64.0-4+deb10u1_armhf.deb …
Unpacking libcurl3-nss:armhf (7.64.0-4+deb10u1) …
Setting up libcurl3-nss:armhf (7.64.0-4+deb10u1) …
Setting up sqlite3 (3.27.2-3) …
Setting up urbackup-server (2.4.12.0) …
chown: missing operand after ‘urbackup:urbackup’
Try ‘chown --help’ for more information.
dpkg: error processing package urbackup-server (–configure):
installed urbackup-server package post-installation script subprocess returned error exit status 1
Processing triggers for man-db (2.8.5-2) …
Processing triggers for libc-bin (2.28-10+rpi1) …
Errors were encountered while processing:
urbackup-server
E: Sub-process /usr/bin/dpkg returned an error code (1)

How can I get the server to run?

Thanks in advance