Error messages in the plank in the journal.txt

[Edson José dos Santos]

fev 17 01:30:04 username-p6540br plank-simples.desktop[16670]: [16670:1:0217/013003.999580:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
fev 17 01:30:09 username-p6540br plank-simples.desktop[16670]: [16670:1:0217/013009.208304:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
fev 17 01:30:09 username-p6540br plank-simples.desktop[16670]: [16670:1:0217/013009.277889:ERROR:child_process_sandbox_support_impl_linux.cc(79)] FontService unique font name matching request did not receive a response.
fev 17 01:30:12 username-p6540br plank-simples.desktop[18622]: [18622:1:0217/013012.771808:ERROR:child_thread_impl.cc(858)] Receiver for unknown Channel-associated interface: chrome.mojom.SearchBouncer
fev 17 01:30:13 username-p6540br plank-simples.desktop[16670]: Fontconfig error: Cannot load default config file
fev 17 01:30:19 username-p6540br plank-simples.desktop[19125]: [19125:1:0217/013019.511839:ERROR:child_thread_impl.cc(858)] Receiver for unknown Channel-associated interface: chrome.mojom.SearchBouncer

https://launchpadlibrarian.net/465271846/JournalErrors.txt

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: plank 0.11.89-1
ProcVersionSignature: Ubuntu 5.4.0-14.17-generic 5.4.18
Uname: Linux 5.4.0-14-generic x86_64
ApportVersion: 2.20.11-0ubuntu16
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Mon Feb 17 10:38:24 2020
InstallationDate: Installed on 2019-04-28 (295 days ago)
InstallationMedia: Ubuntu 19.04 "Disco Dingo" - Release amd64 (20190416)
SourcePackage: plank
SuspiciousXErrors.txt:

UpgradeStatus: Upgraded to focal on 2020-02-04 (13 days ago)