OH 3.1.0 InfluxDB stopped working after update to 1.8.7-1

Yes, ZRAM is enabled in your case.
Content of /etc/ztab describes how you can stop it.
I then would do the reinstall of inflxudb; start the zram service again and then try a reboot.
In case that does not help you may add an entry in /usr/lib/influxdb/scripts/influxdb.service ( ExecStartPre=/usr/bin/chown -R influxdb:influxdb /var/lib/influxdb ).
Create a backup of the original file in case that does not work and you would like to go back to the original version of the file.