Appian Installation Issue - Service Manager Could Not Be Started

Good morning Sir, Madam,

I am trying to install APPIAN locally in my Computer.

I followed all the steps in the below link:

https://docs.appian.com/suite/help/20.3/Quick_Start_Installation_Guide.html

I have valid k4 and k3 licenses files.

When I try to launch the the first command (<APPIAN_HOME>\services\bin\start.bat -p <password> -s all), I have the following error:

c:\appian20.3.90.0\appian\services\bin>start.bat -p admin123 -s all
Detected Appian version 20.3.90.0 from build.info
Starting Distributed Transaction Log
Zookeeper connected, root child count of [12]
QuorumPeerMain is already a running process
Service Zookeeper successfully started
local Kafka broker 0 : (EndPoint(localhost,9092,ListenerName(PLAINTEXT),PLAINTEXT)) : null registered in Zookeeper
Kafka is already a running process
Service Kafka successfully started
Distributed Transaction Log Started
Starting Service Manager
Executing command: '[cmd, /c, c:\appian20.3.90.0\appian\services\lib\scripts\service-manager.bat]' in c:\appian20.3.90.0\appian\services\lib\scripts with environment [JAVA_OPTS:-XX:ErrorFile=c:\appian20.3.90.0\appian\logs\service-manager/service_manager_error_pid%p.log -XX:MaxDirectMemorySize=8g -Xms64m -Xmx8g ]
Waiting for Service Manager to launch
Service Manager could not be started

Please, can you help me with this issue?

Regards,

Richard