ProtonVPN is blocked by Avast. How do I fix it?

Avast Free Antivirus / Premium Security
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I have ProtonVPN installed, but Avast is blocking it. How do I fix that?
Avast has been interfering for awhile, but with this latest update, it is completely blocked, as far as I can tell.

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  • Which Avast…? (Free/Premium/One)
  • Which version/build of Avast…?
  • OS…? (32/64 Bit…? - which SP/Build…?)
  • Other security related software installed…?