PROBLEM
Prob­lems with Win­SCP ver­i­fy­ing SSL signed certificates.

Unable to get local issuer cer­tifi­cate. The error occurred at a depth of 2 in the cer­tifi­cate chain.

SOLUTIONS
- Down­load cacert.pem CAs from http://curl.haxx.se/ca/
— Place it into the same fold­er as winscp.exe.
— After that, you can conect with­out cer­tifi­cate warnings .

SORUCE : www.rootusers.com