zabbix_server.log   [B---] 198 L:[16502+26 16528/21667] *(2538994/3273209b) 0010 0x00A                                                                                                                  [*][X]
  5572:20191022:170135.716 completed 23% of database upgrade
  5572:20191022:170135.804 completed 25% of database upgrade
  5572:20191022:170135.816 completed 26% of database upgrade
  5572:20191022:170136.001 completed 28% of database upgrade
  5572:20191022:170136.030 completed 30% of database upgrade
  5572:20191022:170136.052 completed 32% of database upgrade
  5572:20191022:170136.124 completed 33% of database upgrade
  5572:20191022:170136.137 completed 35% of database upgrade
  5572:20191022:170136.256 completed 37% of database upgrade
  5572:20191022:170136.337 completed 39% of database upgrade
  5572:20191022:170136.457 completed 41% of database upgrade
  5572:20191022:170136.487 completed 42% of database upgrade
  5572:20191022:170136.499 completed 44% of database upgrade
  5572:20191022:170136.499 completed 46% of database upgrade
  5572:20191022:170136.520 completed 48% of database upgrade
  5572:20191022:170136.520 completed 50% of database upgrade
  5572:20191022:170136.527 completed 51% of database upgrade
  5572:20191022:170136.527 completed 53% of database upgrade
  5572:20191022:170136.531 completed 55% of database upgrade
  5572:20191022:170136.531 completed 57% of database upgrade
  5572:20191022:170136.531 completed 58% of database upgrade
  5572:20191022:170136.531 completed 60% of database upgrade
  5572:20191022:170136.531 completed 62% of database upgrade
  5572:20191022:170136.545 completed 64% of database upgrade
  5572:20191022:170136.554 completed 66% of database upgrade
  5572:20191022:170136.575 completed 67% of database upgrade
  5572:20191022:170136.580 [Z3005] query failed: [1366] Incorrect string value: '\xD0\x9C\xD0\xB0\xD0\xB9...' for column 'os' at row 2 [insert into host_inventory (select * from host_inventory_tmp)]
  5572:20191022:170136.580 database upgrade failed
  5603:20191022:170247.147 Starting Zabbix Server. Zabbix 4.4.0 (revision cfac660b25).
  5603:20191022:170247.147 ****** Enabled features ******
  5603:20191022:170247.147 SNMP monitoring:           YES
  5603:20191022:170247.147 IPMI monitoring:           YES
  5603:20191022:170247.147 Web monitoring:            YES
  5603:20191022:170247.147 VMware monitoring:         YES
  5603:20191022:170247.147 SMTP authentication:       YES
  5603:20191022:170247.147 ODBC:                      YES
  5603:20191022:170247.147 SSH2 support:              YES
  5603:20191022:170247.147 IPv6 support:              YES
  5603:20191022:170247.147 TLS support:               YES
  5603:20191022:170247.147 ******************************
  5603:20191022:170247.147 using configuration file: /etc/zabbix/zabbix_server.conf
  5603:20191022:170247.149 current database version (mandatory/optional): 04030038/04030038
  5603:20191022:170247.149 required mandatory version: 04040000
  5603:20191022:170247.149 starting automatic database upgrade
  5603:20191022:170247.150 [Z3005] query failed: [1366] Incorrect string value: '\xD0\x9C\xD0\xB0\xD0\xB9...' for column 'os' at row 2 [insert into host_inventory (select * from host_inventory_tmp)]
  5603:20191022:170247.150 database upgrade failed