8 hours missing on my charts

Avraham R  

I opened my charts this morning and realized that my charts are missing 8 hours of data. 

I usually work with 4h candlesticks and i try changing the charts to 1h candlesticks but the same hours are missing  

Files:
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Sergey Golubev  
The data is related to the broker.
William Roeder  
If Chart → Right-click → refresh doesn't help, you need to talk to your broker.