When I was completing the tasks, an error appeared in the upper left corner, I ignored it and continued to complete the tasks, as a result, progress (32/35) was not saved, now I do not know what to do
#Save Error
viscid snow
blissful sage
Don't ignore critical error messages. When you get one you need to exit the game and relaunch to clear it. It automatically submits a bug report to the developer.
Essentially something happened to the Save State and put it into a dangerous State and so it stops saving so that way you're not locked into that bad state.