Recurring API can't store data in database

hello Friends,
I am working an application of Shopify and it was almost Done, but
now I want to add billing API in it and i have successfully added it but,
I am facing Redirection issue and also don’t have entry in my database.
I have three plans in it there are free, monthly and yearly but this problem
make it Complax,

If anyone have idea about it please help me as soon as possible.

Thank you in advance :slightly_smiling_face: