ROT do not remove beer from primary until fermentation is finished. I sounds like you followed the rule I hate, the one, two, three rule. 1 week Primary, 2 weeks secondary, 3 weeks in the bottle, drink.
Always wait for the fermentation to finish
Please post you OG and current SG, etc. On target doesn't say much. What was the recipe? extracts may cause problems with gravities, more specifically with mixing and stratification. So if this was an extract based recipe when did you add it and how did you mix it.
This will help us to give specific advice
I sounds like you need to add more yeast. how much depends on what your gravities are, but sounds like at least a full yeast pitch. Could you take a new gravity reading as well.