"Thank you from the bottom of our hearts for showing up for James and his beautiful family," a statement posted on the fundraising page says.
"Your kindness has meant more than we can put into words. In the middle of deep grief, your support has been a light.
"It reminds us that love is real, that community is strong, and that James's spirit continues to bring people together."
The page had said his family faced significant financial strain as his medical costs and cancer battle had left them broke.
"Throughout his illness, the family faced not only emotional challenges but also significant financial strain as they did everything possible to support James and provide for his care," it said.
"In the wake of this loss, Kimberly and the children are facing an uncertain future. The costs of James's medical care and the extended fight against cancer have left the family out of funds."
The fundraising appeal said Van Der Beek's family was working hard to stay in their home and ensure the children could continue their education and maintain some stability.
"Your generosity will help cover essential living expenses, pay bills, and support the children's education," it said.
"Every donation, no matter the size, will help Kimberly and her family find hope and security as they rebuild their lives. Thank you for considering a gift to support them."
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