A TimThumb error has occured

The following error(s) occured:

Error reading the URL you specified from remote host.Unknown SSL protocol error in connection to thumbor.dingkeji.com:443

Query String : src=http://thumbor.dingkeji.com/rVmdjXr_PUQ3U9untHpLCY0GKLs=/filters:watermark(http://thumbor.dingkeji.com/6k_x-wLJWoZcqWJilS2HKgrCKtM=/http://www.dingkeji.com/statics/images/water3.png,-10,-10,30)/http://www.dingkeji.com/wp-content/uploads/image/20180228/1519807344666081743.png&h=124&w=218&zc=1
TimThumb version : 2.8.13