KETTLE突然打不开，日志报错含有Couldn‘t read the database cache

KETTLE打不开，且有以下报错

Couldn't read the database cache
org.pentaho.di.core.exception.KettleFileException: 
Unable to read cache entry from data input stream
malformed input around byte 6
malformed input around byte 6
org.pentaho.di.core.exception.KettleFileException: 
Unable to read cache entry from data input stream
malformed input around byte 6
malformed input around byte 6
ERROR 29-05 04:01:49,445 - Spoon - java.lang.RuntimeException: Unable to create the database cache: 
Couldn't read the database cache
org.pentaho.di.core.exception.KettleFileException: 
 
 
Unable to read cache entry from data input stream
malformed input around byte 6
 
 
malformed input around byte 6
 
 
org.pentaho.di.core.exception.KettleFileException: 
 
 
Unable to read cache entry from data input stream
malformed input around byte 6
 
 
malformed input around byte 6
 
 
at org.pentaho.di.core.DBCache.getInstance(DBCache.java:256)
at org.pentaho.di.ui.spoon.Spoon.loadSettings(Spoon.java:6261)
at org.pentaho.di.ui.spoon.Spoon.init(Spoon.java:668)
at org.pentaho.di.ui.spoon.Spoon.main(Spoon.java:536)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.pentaho.commons.launcher.Launcher.main(Launcher.java:134)

将下列目录中的该文件删除并重启：