After restart ubuntu, i can`t run anymore infer-web.py, why?

[CGAlei]

Traceback (most recent call last):
File "/home/nullsky/ai_enviroments/Retrieval-based-Voice-Conversion-WebUI/infer-web.py", line 8, in
from infer.modules.vc.modules import VC
File "/home/nullsky/ai_enviroments/Retrieval-based-Voice-Conversion-WebUI/infer/modules/vc/modules.py", line 7, in
import soundfile as sf
ModuleNotFoundError: No module named 'soundfile'
(base)

[rekvizitt]

You probably forgot to connect the virtual environment.