DuplicateProcessHandler - PID is not valid number. Got: '\u0000\u0000\u0000\u0000\u0000'

[totto]

RROR no.cantara.jau.JavaAutoUpdater - Problem killing running process! A new managed process will not be started. Retrying in 10 seconds",
"2019-02-02T09:00:57.409+0100 [WrapperSimpleAppMain] WARN n.c.j.d.DuplicateProcessHandler - PID is not valid number. Got: '\u0000\u0000\u0000\u0000\u0000' {}",
"java.lang.NumberFormatException: For input string: "\u0000\u0000\u0000\u0000\u0000"",
"\tat java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)",