Reinstalling the service..../ytadsblocker.sh: line 223: systemctl: command not found

[reba0]

Hi
Script was worink well in Docker no I getthe following Error :
Reinstalling the service..../ytadsblocker.sh: line 223: systemctl: command not found

I was not able to fix it

root@pihole:/ytadsblocker# ./ytadsblocker.sh -a install
./ytadsblocker.sh -a start &

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\ / / __ / / / /_ / / / / __ )/ / / | / __ / /
\ / / / / / / / / / / / / / __ / _/ / /| | / / / /_ \
/ / // / // / / / / // / // / / / ___ |/ // // /
//_/_/ ____ _____________________ |/_____///
/ __ )/ / / __ / / //// / __ \
/ __ / / / / / / / / ,< / __/ / // /
/ // / // // / // /| |/ // _, _/
///_/_// |/_____// || v3.7.3 by @deividgdt

[i] Youtube Ads Blocker will be installed.
Log file: /var/log/ytadsblocker.log
Subdomains added to: /etc/pihole/gravity.db

[w] Youtube Ads Blocker already installed...
[i] Reinstalling the service..../ytadsblocker.sh: line 223: systemctl: command not found
[3] 6812
root@pihole:/ytadsblocker# Youtube Ads Blocker Started
Check the /var/log/ytadsblocker.log file to get further information.

Many thanks fr your help

[joekeee]

I'm having the same issue.
Inside the docker container systemctl is not available.