Seller tried to sync with the shopify multiple times but facing an error ( 123649 )

[nikitamankar]

Hi please help to check this

Issue:Seller tried to sync with the shopify multiple times but facing an error. 

Marketplace:Shopify

Request and response:

request url ->  https://c1c56b285b918abd7cb3e23e183e9d95: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@stockistnaelofar.mys...

Response -> {:error=>"403 Forbidden"}