pnR problem

Hello i am getting errors like this can i ignore or proceed to pnR

Building hierarchical netlist for Cell TMR_SHIFTREG ...
*** Netlist is NOT unique.
Set DBUPerIGU to techSite CORE9T width 180.
** info: there are 874 modules.
** info: there are 141652 stdCell insts.

*** Memory Usage v#1 (Current mem = 1034.156M, initial mem = 295.168M) ***
**WARN: (IMPFP-3961): The techSite 'CORE20T_4V' has no related standard cells in the LEF/OA library. The calculations for this site type cannot be made unless standard cell models of this type exist in the LEF/OA library. Ignore this warning if the SITE is not used by the library. Alternatively, remove the SITE definition for the LEF/OA library to avoid this message.
Type 'man IMPFP-3961' for more detail.

*** Summary of all messages that are not suppressed in this session:
Severity ID Count Summary
WARNING IMPLF-200 3 Pin '%s' in macro '%s' has no ANTENNAGAT...
WARNING IMPFP-3961 29 The techSite '%s' has no related standar...
WARNING TCLCMD-1014 10 The SDC set_operating_conditions asserti...
WARNING TCLCMD-1461 10 Skipped unsupported command: %s
WARNING TECHLIB-302 120 No function defined for cell '%s'. The c...
WARNING TECHLIB-1435 13 For dc_current table defined in cell '%s...
*** Message Summary: 185 warning(s), 0 error(s)