EEGLAB and SIFT updatedipplot() error

Hi, i am very new to EEGLAB, please bare with me if this error is a result of something i am doing. I have several EEG .edf all from different patients. I wanted to work out specific effective connectivity for each of the .edf files. I downloaded the SIFT plugin for EEGLAB for this purpose. I followed the tutorial exactly, with t exception that the .edf files use channels as apose to components. I followed the process of SIFT

1. Pre-processing
2. Model fitting and validation
3. ConnectivityOnce this is done i go to connectivity and when i attempt to view the time frequency grid i get the following error

Does anyone have experience with this error? am i doing something wrong in my process?

thank you in advance for the assistance