help me in an error

Hello everyone,

I have successfully developed ik, what everyone is looking for in discord(its in the image) While I am unable to disclose the implementation details, I am encountering an issue. I am attempting to create an thing that you can see in images, but I receive the following error that is in the image

https://preview.redd.it/lptxb3ezg0pf1.png?width=929&format=png&auto=webp&s=1e9224e0df15b1b91523b50904502f6e93df7a5b

https://preview.redd.it/6ezjbrvyg0pf1.png?width=1007&format=png&auto=webp&s=6be0ecc80995e00fac1ecc9ad3ff004cba666393