Good morning, I'm having problems with Zabbix in the host display, they don't show up, I looked up the php and then put the nginx but it didn't work out, when editing some appear but sometimes with flaws in the host icons. If I stop the zabbix-server service the map is perfectly fine whenever there is a fault, but when I activate it again the map does not work.

LOG - ZABBIX-SERVER
root@ubuntu-virtual-machine:/home/ubuntu# tail -f /var/log/zabbix/zabbix_server.log
Cannot find module (IF-MIB): At line 1 in (none)
Cannot find module (SNMPv2-MIB): At line 1 in (none)
Cannot find module (IF-MIB): At line 1 in (none)
Cannot find module (SNMPv2-MIB): At line 1 in (none)
Cannot find module (IF-MIB): At line 1 in (none)
19888:20210305:142458.505 executing housekeeper
19888:20210305:142458.525 housekeeper [deleted 0 hist/trends, 0 items/triggers, 0 events, 0 problems, 0 sessions, 0 alarms, 0 audit, 0 records in 0.008072 sec, idle for 1 hour(s)]
Cannot find module (GPON-ONU-IF-MIB): At line 1 in (none)
Cannot find module (SNMPv2-MIB): At line 1 in (none)
Cannot find module (IF-MIB): At line 1 in (none)
Cannot find module (GPON-ONU-IF-MIB): At line 1 in (none)
Cannot find module (SNMPv2-MIB): At line 1 in (none)
Cannot find module (IF-MIB): At line 1 in (none)