Zabbix server not starting with error: The server does not match Zabbix database

[Akansha123]

I tried installation of zabbix on Ubuntu14.04 from source.
But, when trying to start zabbix server, below error is encountered in logs and zabbix service is not starting:

28469:20160824:112629.887 Starting Zabbix Server. Zabbix 2.2.2 (revision 42525).
28469:20160824:112629.887 ****** Enabled features ******
28469:20160824:112629.887 SNMP monitoring: YES
28469:20160824:112629.887 IPMI monitoring: YES
28469:20160824:112629.887 WEB monitoring: YES
28469:20160824:112629.888 VMware monitoring: YES
28469:20160824:112629.888 Jabber notifications: YES
28469:20160824:112629.888 Ez Texting notifications: YES
28469:20160824:112629.888 ODBC: YES
28469:20160824:112629.888 SSH2 support: YES
28469:20160824:112629.888 IPv6 support: YES
28469:20160824:112629.888 ******************************
28469:20160824:112629.888 using configuration file: /etc/zabbix/zabbix_server.conf
28469:20160824:112629.944 The server does not match Zabbix database. Current database version (mandatory/optional): 03000000/03000000. Required mandatory version: 02020000.

Can anyone please help?

[andris]

"Current database version (mandatory/optional): 03000000/03000000" means you have Zabbix 3.0 database. But server is Zabbix 2.2.2.
Older server cannot work with newer version database. Either set up database for 2.2 server or install 3.0.x server.
Also check /etc/zabbix/zabbix_server.conf that it points server to the right database.

[Akansha123]

Server is Zabbix 3.0.4

root@akansha-VirtualBox:~# zabbix_server --version
zabbix_server (Zabbix) 3.0.4

[andris]

And what is

28469:20160824:112629.887 Starting Zabbix Server. Zabbix 2.2.2 (revision 42525).
...
28469:20160824:112629.944 The server does not match Zabbix database. Current database version (mandatory/optional): 03000000/03000000. Required mandatory version: 02020000.

?