[Bug]: Uninstalling openvox-server on SLES157 not possible

[tuxmea]

Is this a critical security issue?

• This is not a security issue.

Describe the Bug

Running zypper rm --no-confirm openvox-server

Throws an error:

zypper rm --no-confirm openvox-server
Reading installed packages...
Resolving package dependencies...

The following package is going to be REMOVED:
  openvox-server

1 package to remove.

Package install size change:
              |         0 B    required by packages that will be installed
   -79.4 MiB  |  -   79.4 MiB  released by packages that will be removed

Backend:  classic_rpmtrans
Continue? [y/n/v/...? shows all options] (y): y
/var/tmp/rpm-tmp.qFAxyl: line 1: fg: no job control
error: %preun(openvox-server-8.12.1-1.sles15.noarch) scriptlet failed, exit status 1
error: openvox-server-8.12.1-1.sles15.noarch: erase failed
(1/1) Removing: openvox-server-8.12.1-1.sles15.noarch ...................................................................................................[error]
Removal of (141)openvox-server-8.12.1-1.sles15.noarch(@System) failed:
Error: Subprocess failed. Error: RPM failed: Command exited with status 1.
Abort, retry, ignore? [a/r/i] (a): a
Problem occurred during or after installation or removal of packages:
Installation has been aborted as directed.
Please see the above error message for a hint.

Expected Behavior

Uninstallation of openvox-server is possible

Steps to Reproduce

1. zypper rm --no-confirm openvox-server

Environment

Version 8.12.1-1.sles15
Platform SLES15.7

Additional Context

No response

Relevant log output