SNMP timeout

Hi friends
I hope you are fine

I am using Cacti Monitoring ,
I have problems with the MikroTik more than a week ,
When the MikroTik CPU Process ( Maximum ) , SNMP Fail , and show log ( SNMP timeoute )
At the same time does not display Graph on Cacti
Please see screenshots :




Thanks for your attention
Kind Regards
Good luck to you