I attach a log with errors can you help me to understand what all these errors are?
[2018-08-08 08:55:48] ERROR[11990][C-00000005] netsock2.c: getaddrinfo(“host67-195-58-185.serverdedicati.aruba.it”, “(null)”, …): Name or service not known
[2018-08-08 08:55:48] WARNING[11990][C-00000005] acl.c: Unable to lookup ‘host67-195-58-185.serverdedicati.aruba.it’
[2018-08-08 08:55:50] ERROR[11985][C-00000005] netsock2.c: getaddrinfo(“host67-195-58-185.serverdedicati.aruba.it”, “(null)”, …): Name or service not known
[2018-08-08 08:55:50] WARNING[11985][C-00000005] acl.c: Unable to lookup ‘host67-195-58-185.serverdedicati.aruba.it’
[2018-08-08 08:55:50] ERROR[1854] netsock2.c: getaddrinfo(“host67-195-58-185.serverdedicati.aruba.it”, “(null)”, …): Name or service not known
[2018-08-08 08:55:50] WARNING[1854] acl.c: Unable to lookup ‘host67-195-58-185.serverdedicati.aruba.it’
[2018-08-08 08:55:50] ERROR[11990][C-00000005] netsock2.c: getaddrinfo(“host67-195-58-185.serverdedicati.aruba.it”, “(null)”, …): Name or service not known
[2018-08-08 08:55:50] WARNING[11990][C-00000005] acl.c: Unable to lookup ‘host67-195-58-185.serverdedicati.aruba.it’
[2018-08-08 08:55:52] ERROR[1854] netsock2.c: getaddrinfo(“host67-195-58-185.serverdedicati.aruba.it”, “(null)”, …): Name or service not known
[2018-08-08 08:55:52] WARNING[1854] acl.c: Unable to lookup ‘host67-195-58-185.serverdedicati.aruba.it’
[2018-08-08 08:55:53] ERROR[11990][C-00000005] netsock2.c: getaddrinfo(“host67-195-58-185.serverdedicati.aruba.it”, “(null)”, …): Name or service not known
[2018-08-08 08:55:53] WARNING[11990][C-00000005] acl.c: Unable to lookup ‘host67-195-58-185.serverdedicati.aruba.it’
[2018-08-08 08:55:55] ERROR[11985][C-00000005] netsock2.c: getaddrinfo(“host67-195-58-185.serverdedicati.aruba.it”, “(null)”, …): Name or service not known
[2018-08-08 08:55:55] WARNING[11985][C-00000005] acl.c: Unable to lookup ‘host67-195-58-185.serverdedicati.aruba.it’
[2018-08-08 08:55:55] ERROR[1854] netsock2.c: getaddrinfo(“host67-195-58-185.serverdedicati.aruba.it”, “(null)”, …): Name or service not known
[2018-08-08 08:55:55] WARNING[1854] acl.c: Unable to lookup ‘host67-195-58-185.serverdedicati.aruba.it’
[2018-08-08 08:55:57] ERROR[1854] netsock2.c: getaddrinfo(“host67-195-58-185.serverdedicati.aruba.it”, “(null)”, …): Name or service not known
[2018-08-08 08:55:57] WARNING[1854] acl.c: Unable to lookup ‘host67-195-58-185.serverdedicati.aruba.it’
[2018-08-08 08:56:00] ERROR[11985][C-00000005] netsock2.c: getaddrinfo(“host67-195-58-185.serverdedicati.aruba.it”, “(null)”, …): Name or service not known
[2018-08-08 08:56:00] WARNING[11985][C-00000005] acl.c: Unable to lookup ‘host67-195-58-185.serverdedicati.aruba.it’
[2018-08-08 08:56:00] ERROR[11990][C-00000005] netsock2.c: getaddrinfo(“host67-195-58-185.serverdedicati.aruba.it”, “(null)”, …): Name or service not known
[2018-08-08 08:56:00] WARNING[11990][C-00000005] acl.c: Unable to lookup ‘host67-195-58-185.serverdedicati.aruba.it’
[2018-08-08 08:56:00] ERROR[1854] netsock2.c: getaddrinfo(“host67-195-58-185.serverdedicati.aruba.it”, “(null)”, …): Name or service not known
[2018-08-08 08:56:00] WARNING[1854] acl.c: Unable to lookup ‘host67-195-58-185.serverdedicati.aruba.it’
[2018-08-08 08:56:02] ERROR[1854] netsock2.c: getaddrinfo(“host67-195-58-185.serverdedicati.aruba.it”, “(null)”, …): Name or service not known
[2018-08-08 08:56:02] WARNING[1854] acl.c: Unable to lookup ‘host67-195-58-185.serverdedicati.aruba.it’
[2018-08-08 08:56:04] ERROR[11990][C-00000005] netsock2.c: getaddrinfo(“host67-195-58-185.serverdedicati.aruba.it”, “(null)”, …): Name or service not known
[2018-08-08 08:56:04] WARNING[11990][C-00000005] acl.c: Unable to lookup ‘host67-195-58-185.serverdedicati.aruba.it’
[2018-08-08 08:56:05] ERROR[11985][C-00000005] netsock2.c: getaddrinfo(“host67-195-58-185.serverdedicati.aruba.it”, “(null)”, …): Name or service not known
[2018-08-08 08:56:05] WARNING[11985][C-00000005] acl.c: Unable to lookup ‘host67-195-58-185.serverdedicati.aruba.it’
[2018-08-08 08:56:05] ERROR[1854] netsock2.c: getaddrinfo(“host67-195-58-185.serverdedicati.aruba.it”, “(null)”, …): Name or service not known
[2018-08-08 08:56:05] WARNING[1854] acl.c: Unable to lookup ‘host67-195-58-185.serverdedicati.aruba.it’
[2018-08-08 08:56:07] ERROR[1854] netsock2.c: getaddrinfo(“host67-195-58-185.serverdedicati.aruba.it”, “(null)”, …): Name or service not known
[2018-08-08 08:56:07] WARNING[1854] acl.c: Unable to lookup ‘host67-195-58-185.serverdedicati.aruba.it’
[2018-08-08 08:56:10] ERROR[11985][C-00000005] netsock2.c: getaddrinfo(“host67-195-58-185.serverdedicati.aruba.it”, “(null)”, …): Name or service not known
[2018-08-08 08:56:10] WARNING[11985][C-00000005] acl.c: Unable to lookup ‘host67-195-58-185.serverdedicati.aruba.it’
[2018-08-08 08:56:10] ERROR[11990][C-00000005] netsock2.c: getaddrinfo(“host67-195-58-185.serverdedicati.aruba.it”, “(null)”, …): Name or service not known
[2018-08-08 08:56:10] WARNING[11990][C-00000005] acl.c: Unable to lookup ‘host67-195-58-185.serverdedicati.aruba.it’
[2018-08-08 08:56:10] ERROR[1854] netsock2.c: getaddrinfo(“host67-195-58-185.serverdedicati.aruba.it”, “(null)”, …): Name or service not known
[2018-08-08 08:56:10] WARNING[1854] acl.c: Unable to lookup ‘host67-195-58-185.serverdedicati.aruba.it’
[2018-08-08 08:56:12] ERROR[1854] netsock2.c: getaddrinfo(“host67-195-58-185.serverdedicati.aruba.it”, “(null)”, …): Name or service not known
[2018-08-08 08:56:12] WARNING[1854] acl.c: Unable to lookup ‘host67-195-58-185.serverdedicati.aruba.it’
[2018-08-08 08:56:15] ERROR[11985][C-00000005] netsock2.c: getaddrinfo(“host67-195-58-185.serverdedicati.aruba.it”, “(null)”, …): Name or service not known
[2018-08-08 08:56:15] WARNING[11985][C-00000005] acl.c: Unable to lookup ‘host67-195-58-185.serverdedicati.aruba.it’
[2018-08-08 08:56:15] ERROR[1854] netsock2.c: getaddrinfo(“host67-195-58-185.serverdedicati.aruba.it”, “(null)”, …): Name or service not known
[2018-08-08 08:56:15] WARNING[1854] acl.c: Unable to lookup ‘host67-195-58-185.serverdedicati.aruba.it’
[2018-08-08 08:56:17] ERROR[11990][C-00000005] netsock2.c: getaddrinfo(“host67-195-58-185.serverdedicati.aruba.it”, “(null)”, …): Name or service not known
[2018-08-08 08:56:17] WARNING[11990][C-00000005] acl.c: Unable to lookup ‘host67-195-58-185.serverdedicati.aruba.it’
[2018-08-08 08:56:17] ERROR[1854] netsock2.c: getaddrinfo(“host67-195-58-185.serverdedicati.aruba.it”, “(null)”, …): Name or service not known
[2018-08-08 08:56:17] WARNING[1854] acl.c: Unable to lookup ‘host67-195-58-185.serverdedicati.aruba.it’