[SR-Users] Help to understand kamailio error msgs

Hello there, I'm facing some error msg on my kamailio server in production that i would like to understand what they means in order to avoid them. The msg are: - *ERROR: tm [t_reply.c:1270]: t_should_relay_response(): ERROR: t_should_relay_response: status rewrite by UAS: stored: 408, received: 200* - *dispatcher [dispatch.c:1509]: ds_load_replace(): cannot find load for (16720.mydomain.com <http://16720.mydomain.com>)* - *dispatcher [dispatch.c:2270]: ds_next_dst(): cannot update load distribution* - *tm [t_reply.c:533]: _reply_light(): ERROR: _reply_light: can't generate 487 reply when a final 603 was sent out* - *tm [t_reply.c:533]: _reply_light(): ERROR: _reply_light: can't generate 487 reply when a final 480 was sent out* - *WARNING: tm [t_lookup.c:245]: ack_matching(): WARNING: ack_matching() attempted on a transaction with no E2EACK callbacks => the results are not completely reliable when forking is involved* Thank you Best regards -- José Seabra