HELP!unable synchronize

watermelor

188BET靠谱吗https://s3.amazonaws.com/zotero.org/images/forums/u14729526/6q0j8xntkuzehsptalnx.png
wani.teracloud.jp uses an invalid security certificate.
"The certificate is not trusted because the issuer certificate is unknown.
The server might not be sending the appropriate intermediate certificates.
An additional root certificate may need to be imported."
Error code: SEC_ERROR_UNKNOWN_ISSUER
I tried rebooting, no effect.How can I solve this?
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