I have checked your email. So, I have find out the certificate of my website and it's 'GlobalSign Domain Validation CA - SHA256 - G2' certificate. Currently, my sandbox working perfectly without any kind of issue. So, here I have one question which one is given below. 1. Paypal document says that we need to upgrade certificate if we are using 'VeriSign G2 Root Certificate'. So, do you think, I need to take any type of action related to current changes? For more assists. Full technical details can be found in here
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