Error while using opkg update

[mr360]

When i using opkg update,

root@OpenWrt:/etc/opkg# opkg update
Downloading http://downloads.openwrt.org/snapshots/targets/ath79/generic/packages/Packages.gz
Updated list of available packages in /var/opkg-lists/openwrt_core
Downloading http://downloads.openwrt.org/snapshots/targets/ath79/generic/packages/Packages.sig
Signature check passed.
Downloading http://downloads.openwrt.org/snapshots/targets/ath79/generic/kmods/4.14.115-1-d15b9d60bc87f1ac9f16aecaab987c07/Packages.gz
*** Failed to download the package list from http://downloads.openwrt.org/snapshots/targets/ath79/generic/kmods/4.14.115-1-d15b9d60bc87f1ac9f16aecaab987c07/Packages.gz

Downloading http://downloads.openwrt.org/snapshots/packages/mips_24kc/base/Packages.gz
Updated list of available packages in /var/opkg-lists/openwrt_base
Downloading http://downloads.openwrt.org/snapshots/packages/mips_24kc/base/Packages.sig
Signature check passed.
Downloading http://downloads.openwrt.org/snapshots/packages/mips_24kc/luci/Packages.gz
Updated list of available packages in /var/opkg-lists/openwrt_luci
Downloading http://downloads.openwrt.org/snapshots/packages/mips_24kc/luci/Packages.sig
Signature check passed.
Downloading http://downloads.openwrt.org/snapshots/packages/mips_24kc/packages/Packages.gz
Updated list of available packages in /var/opkg-lists/openwrt_packages
Downloading http://downloads.openwrt.org/snapshots/packages/mips_24kc/packages/Packages.sig
Signature check passed.
Downloading http://downloads.openwrt.org/snapshots/packages/mips_24kc/routing/Packages.gz
Updated list of available packages in /var/opkg-lists/openwrt_routing
Downloading http://downloads.openwrt.org/snapshots/packages/mips_24kc/routing/Packages.sig
Signature check passed.
Downloading https://downloads.openwrt.org/snapshots/packages/mips_24kc/telephony/Packages.gz
wget: SSL support not available, please install one of the libustream-.*[ssl|tls] packages as well as the ca-bundle and ca-certificates packages.
*** Failed to download the package list from https://downloads.openwrt.org/snapshots/packages/mips_24kc/telephony/Packages.gz

Collected errors:
 * opkg_download: Failed to download http://downloads.openwrt.org/snapshots/targets/ath79/generic/kmods/4.14.115-1-d15b9d60bc87f1ac9f16aecaab987c07/Packages.gz, wget returned 8.
 * opkg_download: Failed to download https://downloads.openwrt.org/snapshots/packages/mips_24kc/telephony/Packages.gz, wget returned 1.

I don't know what is the issue is, please some help

[psherman]

This is because you are using a snapshot. Do you need/want to run the snapshots? If you can, use an official release build. Otherwise, know that the snapshot package repositories are a moving target and may stop working shortly after you download the latest snapshot.