Zabbix data loosing after 6.0 upgrade to 7.0

[gertz]

Hello, I want ask for help because Im going crazy. after upgrade from 6.0 to 7.0 my zabbix agents loosing connections. I tried almost everything like conf below. it was better than default but still lossing data. I have 30 host with passive agents and 2700 items.

I know there was some asynchronus changes, but I dont know what else do.

Thanks for any help

LogFile=/var/log/zabbix/zabbix_server.log
LogFileSize=0
PidFile=/run/zabbix/zabbix_server.pid
SocketDir=/run/zabbix
DBName=zabbix
DBUser=xxxxxxxx
DBPassword=xxxxxxxxx
StartPollers=20
StartAgentPollers=30
StartHTTPAgentPollers=4
StartSNMPPollers=4
MaxConcurrentChecksPerPoller=5
StartPreprocessors=16
StartPollersUnreachable=10
StartPingers=10
StartHTTPPollers=5
SNMPTrapperFile=/var/log/snmptrap/snmptrap.log
Timeout=10
FpingLocation=/usr/bin/fping
Fping6Location=/usr/bin/fping6
LogSlowQueries=3000
StatsAllowedIP=127.0.0.1
EnableGlobalScripts=0
Include=/etc/zabbix/zabbix_server.d/*.conf

logs:

173293:20261024:083042.183 Zabbix agent item "vfs.fs.size[/mnt/nextcloud/data,pfree]" on host "host-1" failed: first network error, wait for 15 seconds
173293:20261024:083042.183 Zabbix agent item "system.cpu.util[,interrupt]" on host "host-2" failed: first network error, wait for 15 seconds
173332:20261024:083042.186 Zabbix agent item "proc.num[]" on host "question-api" failed: first network error, wait for 15 seconds
173332:20261024:083042.186 Zabbix agent item "vm.memory.size[free]" on host "host-3" failed: first network error, wait for 15 seconds
173336:20261024:083042.186 Zabbix agent item "vfs.fs.size[/data,pused]" on host "host-4" failed: first network error, wait for 15 seconds
173293:20261024:083057.165 resuming Zabbix agent checks on host "host-3": connection restored
173303:20261024:083057.165 resuming Zabbix agent checks on host "host-2": connection restored
173290:20261024:083057.167 resuming Zabbix agent checks on host "host-4": connection restored
173293:20261024:083057.188 resuming Zabbix agent checks on host "host-5": connection restored
173303:20261024:083057.223 resuming Zabbix agent checks on host "host-1": connection restored