A simple strategy to follow is to keep the backlink profile clean.
Focus more on tier 1 links, build tier 2 and 3 links too but spend more on the former.
It's best not to build backlinks like directory or profile links these days.
What are the messages/notification that you received, there must be something.
Don't get me wrong, but, if we don't see any reason behind the restriction, I doubt anyone can help.
