Weird behaviour in Shiny on localhost

Hi, I have this dataframe or data.table here


and I want to display it in Shiny as data.table as below:
output$OverallQuantities_table <- DT::renderDataTable({DT::datatable(OverallQuantities,
options = list(dom='t', paging=FALSE,ordering=FALSE),
rownames = FALSE,escape=FALSE)
})

However, it gives me the table as shown below:

Why?
I had this problem with deploy on localhost 127.0.0.1