The message:
Mon Jan 10 18:26:02 2022 user.err adblock-4.1.3[1577]: coreutils sort not found or not executable
/etc/init.d# ./adblock status
::: adblock runtime information
+ adblock_status : error
+ adblock_version : 4.1.3
+ blocked_domains : 0
+ active_sources : -
+ dns_backend : - (), -
The solution:
opkg install --force-reinstall coreutils-sort
/etc/init.d# ./adblock status
::: adblock runtime information
+ adblock_status : running
+ adblock_version : 4.1.3
+ blocked_domains : 0
+ active_sources : adaway, adguard, disconnect, reg_pl1, reg_pl2
+ dns_backend : dnsmasq (-), /tmp/dnsmasq.d