The EHCR, not the ECJ (the latter of which is related to trade agreements). The EHCR did the opposite of invalidate her conviction -- they upheld the decision of the Austrian court[1]. In other words, they rejected the claim that Austria's anti-blasphemy laws are a violation of human rights (which I disagree with -- though I'm definitely not anti-EU like others in this chain).

[1]: https://www.theatlantic.com/ideas/archive/2018/10/its-not-fr...