Omg!😨😱
You have late stage of spider mites.
I'm dealing with them also in the late flowering.
Try with insecticidal soap and neem oil,spray fan leaves every 3 days.
If that don't work out after a week ,apply rubbing alcohol mixed with water on the fan leaves,google how to prepare and mix it.
You can also spray it all over the plant(wash it after 45 minutes with water)