Problem for OpenKM version: 6.3.10 on my System is solved. Solution: - Update my Java SE Runtime Environment (JRE) from 1.8.0.251 to 1.8.0.271). - Update the JRE-Path for Windows System Variable "JAVA_HOME" too (C:\Program Files\Java\jre1.8.0_251 to C:\Program Files\Java\jre1.8.0_271). Goo...