Oka, then let’s try the next steps:
Please enable Keep alive in Blokadas App settings. Check for one day whether it works. If it doesn’t work refer to this article: Brand specific information.
Try the solutions which are mentioned there for Xiaomi/Huawei, for Samsung/Sony and if none of them helped, please try the solution for Wiko / Infinix:)
If you face problems finding one of them don’t hesitate to ask.