zabbix 4.0 crashes after vmware collector

[batchen_regev]

Hey, im using zabbix 4.0 on centos, and i get this once in an hour :

zabbix_server log:
15832:20190808:170437.244 1: /lib64/libc.so.6(__libc_start_main+0xf5) [0x7f01c585b495]
15832:20190808:170437.244 0: /usr/sbin/zabbix_server: vmware collector #7 [updated 0, removed 0 VMware services in 0.000044 sec, querying VMware services](+0x38dc9) [0x56470779edc9]
15792:20190808:170437.341 One child process died (PID:15832,exitcode/signal:1). Exiting ...
zabbix_server [15792]: Error waiting for process with PID 15832: [10] No child processes

messages logs:
systemd: Unit zabbix-server.service entered failed state.
systemd: zabbix-server.service failed.
systemd: zabbix-server.service holdoff time over, scheduling restart.

and sometimes on the server logs i get this error and i think it might be related :
Error of query maxQueryMetrics: 'config.vpxd.stats.maxQueryMetrics' is invalid or exceeds the maximum number of characters permitted..

zabbix server settings : ( on 200-300 hosts with 30-40 vmwares machines)
LogFileSize=1024
DebugLevel=3
StartPollers=40
StartPollersUnreachable=10
StartPingers=10
StartDiscoverers=5
StartVMwareCollectors=20
VMwareCacheSize=16M
VMwareTimeout=30
HousekeepingFrequency=4
CacheSize=1G
StartDBSyncers=5
Timeout=10
LogSlowQueries=3000
StartProxyPollers=5

[Atsushi]

What is the detailed version of Zabbix you are using? If it is not 4.0.2 or later, I think that it will be improved by upgrading.

ZBX-14858 : Cannot collect VMWare when maxQueryMetrics is -1.

https://support.zabbix.com/browse/ZBX-14858