не могу обновить заббикс, подскажите как вылечить
20545:20210409:092407.371 using configuration file: /etc/zabbix/zabbix_server.c onf
20545:20210409:092407.380 current database version (mandatory/optional): 050100 44/05010044
20545:20210409:092407.380 required mandatory version: 05020000
20545:20210409:092407.380 starting automatic database upgrade
20545:20210409:092407.398 [Z3005] query failed: [1091] Can't DROP 'c_screens_1' ; check that column/key exists [alter table screens drop foreign key c_screens_1 ]
20545:20210409:092407.399 database upgrade failed
20567:20210409:092417.621 Starting Zabbix Server. Zabbix 5.2.6 (revision 798506 596c).
20567:20210409:092417.622 ****** Enabled features ******
20567:20210409:092417.622 SNMP monitoring: YES
20567:20210409:092417.622 IPMI monitoring: YES
20567:20210409:092417.622 Web monitoring: YES
20567:20210409:092417.622 VMware monitoring: YES
20567:20210409:092417.622 SMTP authentication: YES
20567:20210409:092417.622 ODBC: YES
20567:20210409:092417.622 SSH support: YES
20567:20210409:092417.622 IPv6 support: YES
20567:20210409:092417.622 TLS support: YES
20567:20210409:092417.622 ******************************
20567:20210409:092417.622 using configuration file: /etc/zabbix/zabbix_server.c onf
20567:20210409:092417.632 current database version (mandatory/optional): 050100 44/05010044
20567:20210409:092417.633 required mandatory version: 05020000
20567:20210409:092417.633 starting automatic database upgrade
20567:20210409:092417.654 [Z3005] query failed: [1091] Can't DROP 'c_screens_1' ; check that column/key exists [alter table screens drop foreign key c_screens_1 ]
20545:20210409:092407.371 using configuration file: /etc/zabbix/zabbix_server.c onf
20545:20210409:092407.380 current database version (mandatory/optional): 050100 44/05010044
20545:20210409:092407.380 required mandatory version: 05020000
20545:20210409:092407.380 starting automatic database upgrade
20545:20210409:092407.398 [Z3005] query failed: [1091] Can't DROP 'c_screens_1' ; check that column/key exists [alter table screens drop foreign key c_screens_1 ]
20545:20210409:092407.399 database upgrade failed
20567:20210409:092417.621 Starting Zabbix Server. Zabbix 5.2.6 (revision 798506 596c).
20567:20210409:092417.622 ****** Enabled features ******
20567:20210409:092417.622 SNMP monitoring: YES
20567:20210409:092417.622 IPMI monitoring: YES
20567:20210409:092417.622 Web monitoring: YES
20567:20210409:092417.622 VMware monitoring: YES
20567:20210409:092417.622 SMTP authentication: YES
20567:20210409:092417.622 ODBC: YES
20567:20210409:092417.622 SSH support: YES
20567:20210409:092417.622 IPv6 support: YES
20567:20210409:092417.622 TLS support: YES
20567:20210409:092417.622 ******************************
20567:20210409:092417.622 using configuration file: /etc/zabbix/zabbix_server.c onf
20567:20210409:092417.632 current database version (mandatory/optional): 050100 44/05010044
20567:20210409:092417.633 required mandatory version: 05020000
20567:20210409:092417.633 starting automatic database upgrade
20567:20210409:092417.654 [Z3005] query failed: [1091] Can't DROP 'c_screens_1' ; check that column/key exists [alter table screens drop foreign key c_screens_1 ]