Unable to pair Apple Watch with new iPhone and account

my watch can’t paired with my new account and phone number

i don’t know what to do please advice me

I s ask the community

[Re-Titled by Moderator]

Original Title: When my phone was stolen my account were blocked and my line disconnected but my watch not now I get a new phone number with different account but I can’t paired with my phone what can I do? Please give me some advice