Cacti Polling issue

Hi,

I have installed Cacti on a windows server. The graphs from my devices are 
depicting intermittent breaks. I observed that the cacti poll throws an error 
that "Poller is out of synct. poller interval is 300 secs with a maximum of 
300 second scheduled task but 600 secs have passed since the last poll." I am 
not well versed with php and cacti. Can anyone please guide me step by step in 
layman terms about fixing this issue. Thank you very much. 


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