Where did you download blokada from?
If you’re using the Google Play Store Version consider uninstalling that and choose the version available on Blokada.org instead
Hello:)
Please check your system settings for DataSaver and disable it and any kind of traffic restriction / compression.
Do you maybe use Telegram and does that app still work?
Also please try to access an IP via your browser (just type the IP in the adress bar). For example one of Googles IPs: 172.217.12.174