Please Help!!

I am working on a low noise amplifer (LNA). In the schematic I used rplpoly_rf resistors of TSMC foundary. I generated the layout from Tools-> Design synthesis -> Layout XL. My DRC was cleared and LVS as well. However, Error Layer Window (ELW) popped up and pointing to every resistor that "psub_StampErrorFloat". I have no idea how to solve it. Could you please help me to solve this?

Thank you so much.

Your “rppoly_rf” resistor is probably a 3 terminal resistor which needs to be connected
with the 3rd terminal to PWell or Psub. For some cases VXL cannot handle and does not
recognize such connections automatically.
Check if you need a 3rd connection to PWell or Psub  with the resistor and
if  this connection exist in your layout.
* bernd