how to show heatmaps?

[gaucan]

i was trying to add simple feature like heatmaps to i.e. show heatmap of 3bet stat , to see what hands someone 3betted with, if it went to showdown in the past...
since i didnt find such feature in pt4 by default, so i found this https://www.pokerhuds.com/getting-start ... tracker-4/
when i follow their steps , it gives error:

"Unable to import group. Reason: No stats found in import files."

What to do?