Domain resolving error. Check DNS configuration on the gateway (0)

[barakh]

hello

we started receiving the following alerts:

Domain resolving error. Check DNS configuration on the gateway (0)

I found only one sk about the topic sk120558 But it doesn't seem to be related to the issue.

we have cluster of Check Point 23500 appliance

the version is R80.30 jumbo take 155

we run nslookup from the gw and its look like fine 

# nslookup google.co.il
Server: x.x.x.x
Address: x.x.x.x#53

we also run dig command from gateway

#dig google.com

; <<>> DiG 9.3.6-P1-RedHat-9.3.6-25.P1.11.cp993000013 <<>> google.com
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 31783
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;google.com. IN A

;; ANSWER SECTION:
google.com. 26 IN A 172.217.171.238

;; Query time: 1 msec
;; SERVER: x.x.x.x#53(IPv4 address of dns server)
;; WHEN: Sun Jun 14 18:37:35 2020
;; MSG SIZE rcvd: 44

I would like for advice on what to do to stop receiving these alerts