Getting error in schedule refresh

Hi Community,

I am getting an error in the Power BI service schedule refresh (the error is attached), my concern is why I am getting an error in the Power BI Service.
When I manually refresh the report from Power BI Desktop I don’t get any error.
For some days, I have been getting this error and after 10-15 days the error has been gone.
So, my question is, why am I getting these errors, and why did it disappeared after a few days?
Schedule refresh has started working without any change in the DAX.
 

I have attached the DAX for the reference
 

WeightedForecast =

GENERATE (

    VALUES (DateTable),

    FILTER(

        msdyn_quotelinetransaction,

        DateTable[Offset] > (msdyn_quotelinetransaction[StartDateFormated]-TODAY()) &&

        DateTable[Offset] <= (msdyn_quotelinetransaction[EndDateFormated]-TODAY()) &&

        DateTable[Full Date] <> "" &&

        msdyn_quotelinetransaction[Transaction Class] = "Time" &&

        msdyn_quotelinetransaction[Transaction Type] = "Project Contract" &&

        (RELATED(quote[statecodename]) = "Active" || RELATED(quote[statecodename]) = "Draft") &&

        RELATED(quote[statuscodename]) = "In Progress"

    )

)

DailyForecast = SUMMARIZE(

    WeightedForecast,

    WeightedForecast[Full Date_WeightedForecast],

    "TotalDailyForecast",

    SUM(WeightedForecast[DailyHours]),

    "MaxDailyForecast",

    SUM(WeightedForecast[MaxDailyHours])

    )

WeightedForecast =

GENERATE (

    VALUES (DateTable),

    FILTER(

        msdyn_quotelinetransaction,

        DateTable[Offset] > (msdyn_quotelinetransaction[StartDateFormated]-TODAY()) &&

        DateTable[Offset] <= (msdyn_quotelinetransaction[EndDateFormated]-TODAY()) &&

        DateTable[Full Date] <> "" &&

        msdyn_quotelinetransaction[Transaction Class] = "Time" &&

        msdyn_quotelinetransaction[Transaction Type] = "Project Contract" &&

        (RELATED(quote[statecodename]) = "Active" || RELATED(quote[statecodename]) = "Draft") &&

        RELATED(quote[statuscodename]) = "In Progress"

    )

)

Any help would be appreciated.