dpkg --force-architecture -i kiwiirc_18.07.09.1-1_armel.deb
dpkg: Attention: dismissing the problem because the --force option is active:

dpkg: attention: the architecture of the package (armel) does not correspond with the one of the system (armhf)
(Reading the database ... 85474 files or directories currently installed.)
Preparing to unpack kiwiirc_18.07.09.1-1_armel.deb ...
Unpacking kiwiirc: armel (18.07.09.1-1) on (18.07.09.1-1) ...
Configuring kiwiirc: armel (18.07.09.1-1) ...
Job for kiwiirc.service failed because of the control process exited with error code.
See "systemctl status kiwiirc.service" and "journalctl -xe" for details.
dpkg: error processing the kiwiirc package: armel (--install):
 the thread installed the post-installation script returned the error exit code 1
Processing triggers for systemd (232-25 + deb9u6) ...
Errors were found when processing:
 kiwiirc: armel