Constantly logging "No protocol specified"

Boinc-client logs "No protocol specified" incessantly, twice every second on my setup.

    -- Logs begin at Wed 2020-03-25 14:45:19 EET, end at Fri 2020-05-01 17:14:34 EEST. --
    touko 01 00:00:00 saegusa boinc[2083]: No protocol specified
    touko 01 00:00:00 saegusa boinc[2083]: No protocol specified
    touko 01 00:00:01 saegusa boinc[2083]: No protocol specified
    touko 01 00:00:01 saegusa boinc[2083]: No protocol specified
    touko 01 00:00:02 saegusa boinc[2083]: No protocol specified
    touko 01 00:00:02 saegusa boinc[2083]: No protocol specified
    touko 01 00:00:03 saegusa boinc[2083]: No protocol specified
    touko 01 00:00:03 saegusa boinc[2083]: No protocol specified
    touko 01 00:00:04 saegusa boinc[2083]: No protocol specified
    touko 01 00:00:04 saegusa boinc[2083]: No protocol specified
    touko 01 00:00:05 saegusa boinc[2083]: No protocol specified
    touko 01 00:00:05 saegusa boinc[2083]: No protocol specified
    touko 01 00:00:06 saegusa boinc[2083]: No protocol specified

...and on and on...

    touko 01 17:14:54 saegusa boinc[2083]: No protocol specified
    touko 01 17:14:55 saegusa boinc[2083]: No protocol specified
    touko 01 17:14:55 saegusa boinc[2083]: No protocol specified
    touko 01 17:14:56 saegusa boinc[2083]: No protocol specified
    touko 01 17:14:56 saegusa boinc[2083]: No protocol specified
    touko 01 17:14:57 saegusa boinc[2083]: No protocol specified
    touko 01 17:14:57 saegusa boinc[2083]: No protocol specified
    touko 01 17:14:58 saegusa boinc[2083]: No protocol specified
    touko 01 17:14:58 saegusa boinc[2083]: No protocol specified
    touko 01 17:14:59 saegusa boinc[2083]: No protocol specified
    touko 01 17:14:59 saegusa boinc[2083]: No protocol specified
    touko 01 17:15:00 saegusa boinc[2083]: No protocol specified
    touko 01 17:15:00 saegusa boinc[2083]: No protocol specified
    touko 01 17:15:01 saegusa boinc[2083]: No protocol specified
    touko 01 17:15:01 saegusa boinc[2083]: No protocol specified
    touko 01 17:15:02 saegusa boinc[2083]: No protocol specified
    touko 01 17:15:02 saegusa boinc[2083]: No protocol specified

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: boinc-client 7.16.6+dfsg-1
ProcVersionSignature: Ubuntu 5.4.0-26.30-generic 5.4.30
Uname: Linux 5.4.0-26-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu27
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Fri May 1 17:16:46 2020
InstallationDate: Installed on 2016-10-13 (1296 days ago)
InstallationMedia: Ubuntu-Server 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=fi_FI.UTF-8
 SHELL=/bin/bash
SourcePackage: boinc
UpgradeStatus: No upgrade log present (probably fresh install)
modified.conffile..etc.boinc-client.gui_rpc_auth.cfg: [inaccessible: [Errno 13] Lupa evätty: '/etc/boinc-client/gui_rpc_auth.cfg']
mtime.conffile..etc.boinc-client.cc_config.xml: 2020-04-03T18:39:31.411167
mtime.conffile..etc.boinc-client.global_prefs_override.xml: 2020-04-03T15:47:12.178284