Memory release management is not done properly in workflow, which is causing heap size full. Due to that reason problem is coming while loading java Virtual machine.
Solution:
Check if same workflow works fine in process studio. If yes then apply below changes.
1. Edit startup.bat and Increase Xmx2048 to Xmx4096 and save file.
2. Kill all task/process and instance from task manger which was occupied by JVM.
3.Submit request again.