ERROR messages when APPLY CONFIG

Whenever I make some changes from the freePBX GUI and then click ‘APPLY CONFIG’ I notice a bunch of warnings, notices and ERRORs on the command line interface (through ssh).

Should I be concern about the following erros

[2012-10-12 11:10:28] ERROR[2767]: cdr_custom.c:90 load_config: Unable to load cdr_custom.conf. Not logging custom CSV CDRs.

[2012-10-12 11:10:28] ERROR[2767]: cel_custom.c:89 load_config: Unable to load cel_custom.conf. Not logging CEL to custom CSVs.

[2012-10-12 11:10:28] ERROR[2767]: res_clialiases.c:183 load_config: res_clialiases configuration file ‘cli_aliases.conf’ not found

[2012-10-12 11:10:28] ERROR[2767]: res_config_ldap.c:1627 parse_config: Cannot load configuration file: res_ldap.conf

[2012-10-12 11:10:28] ERROR[4892]: netsock2.c:269 ast_sockaddr_resolve: getaddrinfo(“pbx.local”, “(null)”, …): Name or service not known