Anemone especially newly acquired can suffer from several things till they get established, and should be acclimated to your tank and lights.
To much or to strong light is stressful if the anemone isn’t acclaimed or not enough light and no additional feeding they can slowly starve.
Also when purchasing if the anemone is attached to a surface it’s foot and be damaged when removed if not done properly.
You say you’ve had the anemone for 2 months have you been feeding? Have you noticed it moving around or does it stay put.
Moving around is normal unless it’s a lot. If you notice it constantly moving could indicate and unhappy or hungry anemone.
. What are the tank mates?