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Graphic plot not rendering on a brilliant server

I use the plotly package to display a graph in brilliant state. On my local machine, the plot is fine, but when I run the brilliant application on a brilliant server, I get the error message "Error: I can not open the file" Rplots.pdf ", where it is assumed that the plot will be displayed. I tried to use the dev command. off (), as I read some other possible solutions that referred to this as a possible solution, below I inserted my code to create a graph on the server. R script:

    output$recSalesPlot <- renderPlotly({
       BWplot_rec <- ggplot(d1, aes_string(x = "End_of_Week", y = input$metric_rec))
            BWplot_rec <- BWplot_rec + geom_line(aes(color = Group), size = .25)
            BWplot_rec <- BWplot_rec + geom_point(aes(color = Group), size = 2)
            BWplot_rec <- BWplot_rec + xlab("Week")
            if(input$metric_rec == "NetSales"){
              BWplot_rec <- BWplot_rec + ylab("Euros")
            }
            BWplot_rec <- BWplot_rec + ggtitle(paste0("Average ", input$metric_rec, " Per Group Per Week"))
            BWplot_rec <- BWplot_rec + guides(color=FALSE)
            BWplot_rec <- BWplot_rec + theme(panel.grid.major.y = element_blank(),
                                             panel.grid.minor.y = element_blank())
            p <- ggplotly(BWplot_rec)
            p
          })
}

In the ui.R script, I use the following command to invoke the graph:

plotlyOutput("recSalesPlot", width = "100%", height = 600)
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