Git-Flow not supported

[Christian Maximiliano Vera]

Hello community, I was working normally, when I wanted to use Git-flow, I get the following warning:

I already updated both git windows and git integrated, but the error is still there, I also tried to disable the opcoin of "LibGit2", and all the same.

I am currently using version 3.4.12 of Sourtree 

I appreciate any advice!!! 

Thank you very much!