报错提示“Unknown Source"，环境是：jdk1.8.0_191 Burp1.7.26

[wangyadong4198]

java.lang.RuntimeException
at burp.mpf.makeHttpRequest(Unknown Source)
at burp.DnsLog.getDomain(DnsLog.java:35)
at burp.BurpExtender.ScanFastjson47(BurpExtender.java:1169)
at burp.BurpExtender.doScan(BurpExtender.java:419)
at burp.BurpExtender.doPassiveScan(BurpExtender.java:147)
at burp.nic.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
java.lang.RuntimeException
at burp.mpf.makeHttpRequest(Unknown Source)
at burp.DnsLog.getDomain(DnsLog.java:35)
at burp.BurpExtender.ScanFastjson24(BurpExtender.java:999)
at burp.BurpExtender.doScan(BurpExtender.java:379)
at burp.BurpExtender.doPassiveScan(BurpExtender.java:147)
at burp.nic.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)