Labeling with text on the polar charts?

Recently I encountered a small problem. I wanted to create a polar scatter plot and I did that, but i cannot annotate the points with the text. When i try to use mode = ‘markers+text’, the plot is not shown at all. Do you know what can be the reason of that ?

Thanks for your help!
Ivan Berest

P.S. btw the code that i have been using so far
plot_ly(df, t = ~(df column from 0 to 360) , r = ~(df column with certain values), alpha = 0.5, text = ~(df column with annotation text),type = “scatter”,mode=‘markers+text’,marker = list(size = 20)