Faild fetch SNI: [postgres] must not be an IP in kong error log

I found some error log from my kong server logs like below, i don’s know what happen, it’s danger if ignore it?

2021/04/16 05:39:48 [error] 3066#0: *29294960 [lua] certificate.lua:38: log(): [ssl] failed to fetch SNI: failed to fetch '[server-ip]' SNI: [postgres] must not be an IP, context: ssl_certificate_by_lua*, client: 125.64.94.142, server: 0.0.0.0:443
2021/04/16 05:39:49 [error] 3058#0: *29294972 [lua] certificate.lua:38: log(): [ssl] failed to fetch SNI: failed to fetch '[server-ip]' SNI: [postgres] must not be an IP, context: ssl_certificate_by_lua*, client: 125.64.94.142, server: 0.0.0.0:443
2021/04/16 05:39:49 [error] 3040#0: *29294978 [lua] certificate.lua:38: log(): [ssl] failed to fetch SNI: failed to fetch '[server-ip]' SNI: [postgres] must not be an IP, context: ssl_certificate_by_lua*, client: 125.64.94.142, server: 0.0.0.0:443
2021/04/16 05:39:49 [error] 3055#0: *29294988 [lua] certificate.lua:38: log(): [ssl] failed to fetch SNI: failed to fetch '[server-ip]' SNI: [postgres] must not be an IP, context: ssl_certificate_by_lua*, client: 125.64.94.142, server: 0.0.0.0:443
2021/04/16 05:39:49 [error] 3075#0: *29295008 [lua] certificate.lua:38: log(): [ssl] failed to fetch SNI: failed to fetch '[server-ip]' SNI: [postgres] must not be an IP, context: ssl_certificate_by_lua*, client: 125.64.94.142, server: 0.0.0.0:443
2021/04/16 05:39:49 [error] 3054#0: *29295018 [lua] certificate.lua:38: log(): [ssl] failed to fetch SNI: failed to fetch '[server-ip]' SNI: [postgres] must not be an IP, context: ssl_certificate_by_lua*, client: 125.64.94.142, server: 0.0.0.0:443
2021/04/16 05:39:49 [error] 3053#0: *29295032 [lua] certificate.lua:38: log(): [ssl] failed to fetch SNI: failed to fetch '[server-ip]' SNI: [postgres] must not be an IP, context: ssl_certificate_by_lua*, client: 125.64.94.142, server: 0.0.0.0:443
2021/04/16 05:39:49 [error] 3067#0: *29295038 [lua] certificate.lua:38: log(): [ssl] failed to fetch SNI: failed to fetch '[server-ip]' SNI: [postgres] must not be an IP, context: ssl_certificate_by_lua*, client: 125.64.94.142, server: 0.0.0.0:443
2021/04/16 05:39:49 [error] 3032#0: *29295040 [lua] certificate.lua:38: log(): [ssl] failed to fetch SNI: failed to fetch '[server-ip]' SNI: [postgres] must not be an IP, context: ssl_certificate_by_lua*, client: 125.64.94.142, server: 0.0.0.0:443
2021/04/16 05:39:49 [error] 3038#0: *29295052 [lua] certificate.lua:38: log(): [ssl] failed to fetch SNI: failed to fetch '[server-ip]' SNI: [postgres] must not be an IP, context: ssl_certificate_by_lua*, client: 125.64.94.142, server: 0.0.0.0:443
2021/04/16 05:58:21 [error] 3071#0: *29436837 [lua] certificate.lua:38: log(): [ssl] failed to fetch SNI: failed to fetch '[server-ip]' SNI: [postgres] must not be an IP, context: ssl_certificate_by_lua*, client: 192.241.205.143, server: 0.0.0.0:443
2021/04/16 05:58:21 [error] 3078#0: *29436889 [lua] certificate.lua:38: log(): [ssl] failed to fetch SNI: failed to fetch '[server-ip]' SNI: [postgres] must not be an IP, context: ssl_certificate_by_lua*, client: 192.241.205.143, server: 0.0.0.0:443
2021/04/16 05:58:21 [error] 3072#0: *29436936 [lua] certificate.lua:38: log(): [ssl] failed to fetch SNI: failed to fetch '[server-ip]' SNI: [postgres] must not be an IP, context: ssl_certificate_by_lua*, client: 192.241.205.143, server: 0.0.0.0:443
2021/04/16 05:58:29 [error] 3037#0: *29437808 [lua] certificate.lua:38: log(): [ssl] failed to fetch SNI: failed to fetch '[server-ip]' SNI: [postgres] must not be an IP, context: ssl_certificate_by_lua*, client: 192.241.205.143, server: 0.0.0.0:443
2021/04/16 05:58:30 [error] 3073#0: *29437944 [lua] certificate.lua:38: log(): [ssl] failed to fetch SNI: failed to fetch '[server-ip]' SNI: [postgres] must not be an IP, context: ssl_certificate_by_lua*, client: 192.241.205.143, server: 0.0.0.0:443
2021/04/16 05:58:30 [error] 3066#0: *29437979 [lua] certificate.lua:38: log(): [ssl] failed to fetch SNI: failed to fetch '[server-ip]' SNI: [postgres] must not be an IP, context: ssl_certificate_by_lua*, client: 192.241.205.143, server: 0.0.0.0:443
2021/04/16 05:58:31 [error] 3066#0: *29438049 [lua] certificate.lua:38: log(): [ssl] failed to fetch SNI: failed to fetch '[server-ip]' SNI: [postgres] must not be an IP, context: ssl_certificate_by_lua*, client: 192.241.205.143, server: 0.0.0.0:443
2021/04/16 05:58:31 [error] 3048#0: *29438143 [lua] certificate.lua:38: log(): [ssl] failed to fetch SNI: failed to fetch '[server-ip]' SNI: [postgres] must not be an IP, context: ssl_certificate_by_lua*, client: 192.241.205.143, server: 0.0.0.0:443
2021/04/16 05:58:32 [error] 3040#0: *29438304 [lua] certificate.lua:38: log(): [ssl] failed to fetch SNI: failed to fetch '[server-ip]' SNI: [postgres] must not be an IP, context: ssl_certificate_by_lua*, client: 192.241.205.143, server: 0.0.0.0:443
2021/04/16 05:58:33 [error] 3077#0: *29438341 [lua] certificate.lua:38: log(): [ssl] failed to fetch SNI: failed to fetch '[server-ip]' SNI: [postgres] must not be an IP, context: ssl_certificate_by_lua*, client: 192.241.205.143, server: 0.0.0.0:443

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