java.lang.InternalError Android

I am getting this error, how can I fix it?

  java.lang.InternalError: 
  at java.lang.Thread.nativeCreate (Native Method)
  at java.lang.Thread.start (Thread.java:1063)
  at java.util.concurrent.ThreadPoolExecutor.addWorker (ThreadPoolExecutor.java:920)
  at java.util.concurrent.ThreadPoolExecutor.processWorkerExit (ThreadPoolExecutor.java:988)
  at java.util.concurrent.ThreadPoolExecutor.runWorker (ThreadPoolExecutor.java:1130)
  at java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:587)
  at java.lang.Thread.run (Thread.java:818)

A user is sending me some info it is about this:

java.lang.StringIndexOutOfBoundsException: length=0; regionStart=0; regionLength=1
at java.lang.String.startEndAndLength(String.java:298)
at java.lang.String.substring(String.java:1087)