Call are going through fine but errors are flooding

im sorry if i have a newb questions but couldnt find an answer for this one on google.
i got centos with freepbx 13.12.1 on it, when i go into asterisk -rv to see the live logs
this what happens
whenever i make calls, all the calls are going through just fine, incoming and outgoing, but the logs are flooded with the same errors
pbx_functions.c:608 ast_func_read: function PJSIP_HEADER not registered.
now im happy that everything is working correctly but should i ignore these ?
i’d rather keep the logs clean.

Yes, these are normal.