OH 2.5.10: InfluxDB + Grafana install error

EDIT: Solved. Installed manually.

Hi,
I’m trying to install InfluxDB + Grafana via the openhabian-config GUI, but everytime it ends up with the following error. Can anybody help, please?

[21:56:07] openhabian@openHABianPi:~$ sudo openhabian-config
2020-12-15_21:56:17_CET [openHABian] Checking for root privileges... OK
2020-12-15_21:56:18_CET [openHABian] Loading configuration file '/etc/openhabian.conf'... OK
2020-12-15_21:56:18_CET [openHABian] openHABian configuration tool version: [stable]v1.6.1-963(1fa8959)
2020-12-15_21:56:18_CET [openHABian] Checking for changes in origin branch HEAD... OK
2020-12-15_21:57:09_CET [openHABian] Switching to branch stable... OK
2020-12-15_21:59:08_CET [openHABian] Updating Linux package information... OK
2020-12-15_21:59:08_CET [openHABian] Beginning setup of InfluxDB and Grafana... OK
2020-12-15_21:59:10_CET [openHABian] Configuring InfluxDB... OK
2020-12-15_22:01:39_CET [openHABian] Configuring Grafana... OK
2020-12-15_22:02:07_CET [openHABian] Installing InfluxDB...
$ influxdb_install admin .7lLG}{)(k=J)k6y
2020-12-15_22:02:09_CET [openHABian] Adding required keys to apt...
$ wget -qO /tmp/openhabian.7eN0i https://repos.influxdata.com/influxdb.key

$ apt-key add /tmp/openhabian.7eN0i
OK
OK
2020-12-15_22:02:13_CET [openHABian] Installing InfluxDB...
$ apt-get update
Hit:1 http://ftp.fi.muni.cz/pub/linux/raspbian/raspbian stretch InRelease
Hit:2 http://raspbian.piduino.org stretch InRelease
Get:3 http://archive.raspberrypi.org/debian stretch InRelease [25.4 kB]
Ign:4 http://repos.azulsystems.com/debian stable InRelease
Hit:5 http://repos.azulsystems.com/debian stable Release
Get:6 https://download.docker.com/linux/raspbian stretch InRelease [31.1 kB]
Hit:7 https://repo.z-wave.me/z-way/raspbian stretch InRelease
Ign:8 https://dl.bintray.com/openhab/apt-repo2 stable InRelease
Get:9 https://dl.bintray.com/openhab/apt-repo2 stable Release [6,051 B]
Hit:9 https://dl.bintray.com/openhab/apt-repo2 stable Release
Ign:10 https://repos.influxdata.com/raspbian stretch InRelease
Ign:11 https://repos.influxdata.com/raspbian stretch Release
Ign:12 https://repos.influxdata.com/raspbian stretch/stable all Packages
Ign:13 https://repos.influxdata.com/raspbian stretch/stable armhf Packages
Ign:14 https://repos.influxdata.com/raspbian stretch/stable Translation-en
Ign:15 https://repos.influxdata.com/raspbian stretch/stable Translation-en_US
Ign:16 https://repos.influxdata.com/raspbian stretch/stable Translation-en_US.UTF-8
Ign:12 https://repos.influxdata.com/raspbian stretch/stable all Packages
Ign:13 https://repos.influxdata.com/raspbian stretch/stable armhf Packages
Ign:14 https://repos.influxdata.com/raspbian stretch/stable Translation-en
Ign:15 https://repos.influxdata.com/raspbian stretch/stable Translation-en_US
Ign:16 https://repos.influxdata.com/raspbian stretch/stable Translation-en_US.UTF-8
Ign:12 https://repos.influxdata.com/raspbian stretch/stable all Packages
Ign:13 https://repos.influxdata.com/raspbian stretch/stable armhf Packages
Ign:14 https://repos.influxdata.com/raspbian stretch/stable Translation-en
Ign:15 https://repos.influxdata.com/raspbian stretch/stable Translation-en_US
Ign:16 https://repos.influxdata.com/raspbian stretch/stable Translation-en_US.UTF-8
Ign:12 https://repos.influxdata.com/raspbian stretch/stable all Packages
Ign:13 https://repos.influxdata.com/raspbian stretch/stable armhf Packages
Ign:14 https://repos.influxdata.com/raspbian stretch/stable Translation-en
Ign:15 https://repos.influxdata.com/raspbian stretch/stable Translation-en_US
Ign:16 https://repos.influxdata.com/raspbian stretch/stable Translation-en_US.UTF-8
Ign:12 https://repos.influxdata.com/raspbian stretch/stable all Packages
Ign:13 https://repos.influxdata.com/raspbian stretch/stable armhf Packages
Ign:14 https://repos.influxdata.com/raspbian stretch/stable Translation-en
Ign:15 https://repos.influxdata.com/raspbian stretch/stable Translation-en_US
Ign:16 https://repos.influxdata.com/raspbian stretch/stable Translation-en_US.UTF-8
Ign:12 https://repos.influxdata.com/raspbian stretch/stable all Packages
Err:13 https://repos.influxdata.com/raspbian stretch/stable armhf Packages
  404  Not Found
Ign:14 https://repos.influxdata.com/raspbian stretch/stable Translation-en
Ign:15 https://repos.influxdata.com/raspbian stretch/stable Translation-en_US
Ign:16 https://repos.influxdata.com/raspbian stretch/stable Translation-en_US.UTF-8
Fetched 56.4 kB in 9s (6,153 B/s)
Reading package lists... Done
W: The repository 'https://repos.influxdata.com/raspbian stretch Release' does not have a Release file.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
E: Failed to fetch https://repos.influxdata.com/raspbian/dists/stretch/stable/binary-armhf/Packages  404  Not Found
E: Some index files failed to download. They have been ignored, or old ones used instead.
FAILED (update apt lists)
FAILED
2020-12-15_22:03:20_CET [openHABian] We hope you got what you came for! See you again soon ;)

influxdb_error

openHAB version: 2.5.10-1 (Release Build)
Platform = Raspberry Pi 3 Model B Plus Rev 1.3
Release = Raspbian GNU/Linux 9 (stretch)
Kernel = Linux 4.14.98-v7+