Empty table when defining time series in R script

Hello,

I am trying to forecast sales using an R script. The R script works fine in R Studio but returns an empty table when used in Power BI.

Here is my data:

"Week" is formatted as a date and "Unit" is formatted as a number.

I use the following code:

library(dplyr)
library(forecast)
library(lubridate)
 
salesTS <- ts(dataset$`Unit`, frequency = 52, start = 2018)

salesLog <- log(salesTS)

salesLogHW <- HoltWinters(salesLog)

nextYearSales <- forecast(salesLogHW, h=52)

 "This table is empty" is displayed after I try to transform the dataset to time series.

Does anyone know how I can make my code work and obtain a forecast for 52 weeks ahead?

Thanks,

Alona