My ex girlfriend block me but my stuff is at her house? What should I do?

My ex girlfriend blocked me but I still have $1000 worth of stuff at her house. I’ve tried calling her from blocked numbers, and leaving voice messages asking her to retrieve all my stuff. But she still hasn’t returned any calls. I have a key to her house. Should I just go get it? What should I do?
My ex girlfriend block me but my stuff is at her house? What should I do?
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