doAnalyses: TRAN: Timestep too small; initial timepoint: trouble with xu9.xi_nn:dvnf-instance d.xu9.xi_nn.d1

hello. i try to create an ecg machine and i get this error
doAnalyses: TRAN: Timestep too small; initial timepoint: trouble with xu9.xi_nn:dvnf-instance d.xu9.xi_nn.d1

As i cannot upload files as a new user i have inserted a google drive link with the project file

https://forum.kicad.info/search?expanded=true&q=timestep%20too%20small