Dominique Brown, a Disney influencer, died at the age of 34.

Brown, who documented her passions for Disney and its theme parks on her personal Instagram page and the @BlackGirlDisney page, died after reportedly experiencing an allergic reaction at a holiday event pop culture merchandise retailer BoxLunch hosted on Los Angeles Dec. 5, according to multiple reports.

The official cause of her death was not released.

“We are devastated by the passing of Dominique Brown,” a BoxLunch rep told “People” in a statement on Saturday, Dec. 7, “a beloved member of the BoxLunch Collective, who suffered a medical emergency at an event hosted by BoxLunch on Thursday in Los Angeles.

“Our hearts go out to her family and friends, and we will do everything we can to support them and the members of the BoxLunch Collective and our team during this painful time.”

Brown’s brother, Patrick Ramos, thanked fans for their support after news of his sister’s death was made public.

“I wanted to take a moment to say thank you to her social media fam for showing her so much love and light,” he wrote Dec. 6 in a comment on the influencer’s last Instagram post, shared two days prior. “Disney did bring her joy, but it was unparalleled that she found a community who loved her and Disney as much as she did.

“I will miss my sister and best friend and that infectious smile she always had. Thank you, truly, from the bottom of my heart.”