Stopped compiling gulp, how to fix it?

Question

gulp.js

Hello, just yesterday everything worked. I turned off the computer, today I turn it on and gulp opens to work.
At first he didn't video the gulp command at all. I transferred a local file to the folder, it seems that compilation went on, but the logs are that everything is fine, but the file itself is not created. Moreover, if you make an error, it will display it