sigma studio broke my project

Hello.

Sigma studio broke my project. AGAIN. Seems like software cannot parse its own internal file format, Last modification i made - adding aux input. Please, help me to fix this file, i spent a lot of time on it.

https://dropmefiles.com/qn5B0

Edit Notes
file added

[edited by: Pproger at 9:17 AM (GMT -4) on 23 Mar 2021]

broken

graph

sigmastudio

error_window