[Koha] problem with link bibs

[Arayik Manukyan]

Hi list .
We have problem with link bibs with authority in koha 3.20.05.
when we use this command.
  sudo perl -I /usr/share/koha/lib 
/usr/share/koha/bin/link_bibs_to_authorities.pl
it link but not all record/authorities and for some records it return 
such error.
***************************************************************************************
Argument "\x{55}\x{50}..." isn't numeric in numeric ge (>=) at 
/usr/share/koha/lib/C4/Charset.pm line 141.
*********************************************************************************************
Please any suggestions.