Picard Marduplicates error

Good day.

I have encountered with this error while using MarkDuplicates tool. My task was killed then. The error message was:

/appl/bio/picard/picard-2.6.0/bin/picard: line 5: 632 Killed \
/usr/lib/jvm/java-1.8.0-oracle.x86_64/bin/java -Xmx32g \

/appl/bio/picard/picard-2.6.0/bin/picard: line 5: 57821 Killed \
/usr/lib/jvm/java-1.8.0-oracle.x86_64/bin/java -Xmx32g \

Could someone please help?

Thanks for your time.

KJ Lim