Adblock - white list not working

|Device|Turris Omnia|
|Serial number|47244664016|
|Turris OS version|5.1.0|
|Turris OS branch|HBS|
|Kernel version|4.14.193|

I have a problem with the adblock. I noticed that it is still blocking my whitelist domains.
Web browsers are returning to me DNS_PROBE_FINISHED_NXDOMAIN
After stopping the adblock process, I can enter the whitelist domains without any problems.

Someone will help how to diagnose why blocking websites that should not be blocked?