Problems to "contact" some adressess

Some adresses do not show up anymore since recent installation of AVG Ultimate. I suppose it has something to do with the settings of the software but not clear for me what and how :-(.

Hello Patrick,

We regret the inconvenience caused.
Temporarily disable your AVG Internet Security as mentioned in this article & check if the issue persists.
Also, turn off/disable your AVG Secure VPN as well.
Keep us updated.

Hello Patrick,

We regret the inconvenience caused.
Temporarily disable your AVG Internet Security as mentioned in this article & check if the issue persists.
Also, turn off/disable your AVG Secure VPN as well.
Keep us updated.