Tabular Data 'str' object is not callable error

Good day! I was trying to use fastai2 on tabular data. I was following the examples and some guides from YouTube. But I can’t seem to use the learn.dls.test_dl(test_dataframe) function? An error pops up saying ‘str’ object is not callable error. My y_name is a multicategorical/label target. I also used the MultiCategoryBlock() as y_block. Still the errors pops up. I can safely use tabular_learner but I can’t use the learn.dls.test_dl(test_dataframe… I hope someone could help enlighten me on this.

Thanks and regards!