I have had this error too, but couldn't figure out how to make the changes to my Ubuntu setup.
I have followed this and it worked as well: https://www.traccar.org/forums/topic/issue-with-locationiq-reverse-geocoding/
vi /etc/systemd/system/traccar.service
ExecStart=/opt/traccar/jre/bin/java -jar tracker-server.jar conf/traccar.xml
to
ExecStart=/opt/traccar/jre/bin/java -Djdk.tls.client.protocols=TLSv1.2 -jar tracker-server.jar conf/traccar.xml
Ah, thanks Dariusz :)
All thanks to Anthon for great software.
Thanks Anton for great software and thanks Dariusz
fox2plus Thanks! Work for me.
@fox2plus
Thanks, this works for me on Ubuntu 16.04.6 LTS with Version: 4.4.