Error HAproxy setting up Frontend & LetsEnscirpt

Hi i am trying to create a CA certificate . I have created following Using LTS guide HAPROXY & Let Encrpt ` Errors found while starting haproxy
[NOTICE] (56895) : haproxy version is 2.8.3-86e043a
[NOTICE] (56895) : path to executable is /usr/local/sbin/haproxy
[ALERT] (56895) : config : parsing [/var/etc/haproxy_test/haproxy.cfg:30] : error detected while parsing switching rule : no such ACL : ‘firewall’.
[ALERT] (56895) : config : Error(s) found in configuration file : /var/etc/haproxy_test/haproxy.cfg
[ALERT] (56895) : config : Fatal errors found in configuratio.

I creates an "A"record Firewall in Cloudflare and Cert in ACME all green . I would be gratefull if someone to advise why i keep getting this errors .

Did you follow the guide I made for 2023?

Thanks for reply exactley, this happened twice . when I apply changes this is the error that comes up so i am unbale to go further. I’II check everything again .