Shiny App with leaflet map runs well in Rstudio but when I try to deploy it in shinyapps.io, it deploys but then I just get an error message

Posit Professional & Hosted Products shinyapps.io
1 
# Load required libraries
library(shiny)
library(leaflet)
library(rnaturalearth)
library(sf)

# Download and load Natural Earth data for Australian states
aus_states <- ne_states(country = "Australia", returnclass = "sf")

# Generate random data for Australian states
set.seed(123) # For reproducibility
aus_states$Value <- runif(nrow(aus_states), min = 1, max = 100)

# Define UI
ui <- fluidPage(
  titlePanel("Australian State Choropleth Map with Random Data"),
  mainPanel(
    leafletOutput("map")
  )    
)

# Define server logic
server <- function(input, output) {
  # Render the choropleth map
  output$map <- renderLeaflet({
    leaflet(data = aus_states) %>%
      addProviderTiles("CartoDB.Positron") %>%
      addPolygons(
        fillColor = ~colorQuantile("YlOrRd", Value)(Value),
        fillOpacity = 0.7,
        color = "#BDBDC3",
        weight = 1,
        highlight = highlightOptions(
          weight = 3,
          color = "#666",
          fillOpacity = 0.7,
          bringToFront = TRUE
        ),
        label = ~paste(name, ": ", round(Value, 2)),
        labelOptions = labelOptions(
          style = list("font-weight" = "normal", padding = "3px 8px"),
          textsize = "15px",
          direction = "auto"
        )
      ) %>%
      addLegend(
        "bottomright",
        pal = colorQuantile("YlOrRd", aus_states$Value),
        values = ~Value,
        title = "Value",
        labFormat = labelFormat(digits = 1)
      ) %>%
      setView(lng = 133, lat = -27, zoom = 4)  # Set initial map view
  })
}

# Run the app
shinyApp(ui = ui, server = server)
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