Getting error while configuring SSO with ZOHO Vault and AWS Identity Center

Getting error while configuring SSO with ZOHO Vault and AWS Identity Center

Hello Team,

I have configured the ZOHO Vault with AWS Identity center as per this blog: https://help.zoho.com/portal/en/kb/vault/admin-guide/articles/vault-configure-single-sign-on-sso

but after that I am started getting error as

 An error occurred
An error occurred while processing your request.
Please try again later.
And I am not getting what is wrong. Please help me to fix this issue asap.