Pacman fail to resolve adress but not ping

[HANTALE-59]

I can chroot in archlinux. Using ping command I can ping any adress name but pacman fail to resolve it. How can I fix it pls?

./start_arch.sh 
mount: mounting /etc/resolv.conf on /data/local/tmp/chrootarch/etc/resolv.conf failed: No such file or directory
mount: mounting proc on /data/local/tmp/chrootarch/proc/ failed: Device or resource busy
mount: mounting sysfs on /data/local/tmp/chrootarch/sys/ failed: Device or resource busy
[root@localhost ~]# pacman -Sy
:: Synchronizing package databases...
 core.db failed to download
 extra.db failed to download
 alarm.db failed to download
 aur.db failed to download
error: restricting filesystem access failed because landlock is not supported by the kernel!
error: failed retrieving file 'core.db' from mirror.archlinuxarm.org : Could not resolve host: mirror.archlinuxarm.org
warning: fatal error from mirror.archlinuxarm.org, skipping for the remainder of this transaction
error: failed retrieving file 'extra.db' from mirror.archlinuxarm.org : Failed to connect to mirror.archlinuxarm.org port 80 after 23 ms: Could not connect to server
error: failed retrieving file 'alarm.db' from mirror.archlinuxarm.org : Failed to connect to mirror.archlinuxarm.org port 80 after 22 ms: Could not connect to server
error: failed retrieving file 'aur.db' from mirror.archlinuxarm.org : Failed to connect to mirror.archlinuxarm.org port 80 after 22 ms: Could not connect to server
error: failed retrieving file 'core.db' from gr.mirror.archlinuxarm.org : Could not resolve host: gr.mirror.archlinuxarm.org
warning: fatal error from gr.mirror.archlinuxarm.org, skipping for the remainder of this transaction
error: failed retrieving file 'extra.db' from gr.mirror.archlinuxarm.org : Failed to connect to gr.mirror.archlinuxarm.org port 80 after 0 ms: Could not connect to server
error: failed retrieving file 'alarm.db' from gr.mirror.archlinuxarm.org : Failed to connect to gr.mirror.archlinuxarm.org port 80 after 0 ms: Could not connect to server
error: failed retrieving file 'aur.db' from gr.mirror.archlinuxarm.org : Failed to connect to gr.mirror.archlinuxarm.org port 80 after 0 ms: Could not connect to server
error: failed to synchronize all databases (failed to retrieve some files)
[root@localhost ~]# ping mirror.archlinuxarm.org
PING mirror.archlinuxarm.org (50.116.36.110) 56(84) bytes of data.
64 bytes from archlinuxarm.org (50.116.36.110): icmp_seq=1 ttl=45 time=102 ms
64 bytes from archlinuxarm.org (50.116.36.110): icmp_seq=2 ttl=45 time=101 ms
64 bytes from archlinuxarm.org (50.116.36.110): icmp_seq=3 ttl=45 time=106 ms
^C
--- mirror.archlinuxarm.org ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2003ms
rtt min/avg/max/mdev = 100.502/102.846/106.472/2.600 ms
[root@localhost ~]#