Xshell启动的时候报initialize flexnet service failed error code 50003

#按需wget相应的deb包
wget https://mirrors.aliyun.com/zabbix/zabbix/5.0/ubuntu/pool/main/z/zabbix-release/zabbix-release_5.0-1+xenial_all.deb
sudo dpkg -i zabbix-release_5.0-1+xenial_all.deb
sudo apt-get update

sudo apt-get install -y zabbix-agent
sudo vi /etc/zabbix/zabbix_agentd.conf
#被动模式仅需修改Server、Hostname

sudo service zabbix-agent start
sudo service zabbix-agent status
sudo update-rc.d zabbix-agent enable

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#zabbix-agent被动模式
sudo ufw allow 10050/tcp
sudo ufw reload