Installed links now says suspension needs service

Just installed the adjustable lowering links on my 2015 P85D. Upon taking out for a test drive the rear lost all the air and was super low and gave the suspension needs service alert. I raised the links to the stock position and the same alert came on with rear all the way down. I just undid all the links and put the stock links back on and it still won’t fill the back and is giving the suspension needs service alert.

Any remedy to reset the suspension or something? Front seemed to work fine but rear is still in super low position.

Thanks in advance

 

Thanks! That is exactly what it was. I also found an old thread that had a hand drawn image depicting correct vs incorrect rear lowering link position