Installer blocked by Behavior Shield.
Avidemux 2.7.6
Could well be a genuine detection: https://www.virustotal.com/gui/ip-address/95.211.211.134/relations
Dutch hoster, Leaseweb BV, known to not always having a 100% clean bill of health,
to state this mildly and the platform/AS is not free of abuse either.
polonus
It is fixed. Thanks.