Error when trying to configure zabbix Frontend

[Meloued]

Hi
Please can I have Help?
I have this error when I try to configure zabbix Frontend.
"Unable to determine the current database version the table 'dbversion' was not found"
I don't knows why this error occurs.
Could you help me please.

[Hamardaban]

Have you installed and configured a database server? Do you know the connection parameters? Have you filled the database with initial values?

https://www.zabbix.com/documentation/current/manual/appendix/install/db_scripts

[Meloued]

yes i Installed the database. I used these commands

# mysql -uroot -p
password
mysql> create database zabbix character set utf8 collate utf8_bin;
mysql> create user zabbix@localhost identified by 'password';
mysql> grant all privileges on zabbix.* to zabbix@localhost;
mysql> quit;

zcat /usr/share/doc/zabbix-server-mysql*/create.sql.gz | mysql -uzabbix -p zabbix

#systemctl restart zabbix-server zabbix-agent apache2
# systemctl enable zabbix-server zabbix-agent apache2

After excecute these commands, I want to configure zabbix fronted
and The error occurs.
I don't know why, and I don't know how to correct it.
Sorry for my english

[Hamardaban]

Let's continue:
does zabbix server start? Does it connect to the database? Are there any error messages in the logs of the zabbix server or the database server?
Have you tried connecting to the database? check the availability and look at the contents of the table dbversion?