Java heap space … This message implies that your report is so big that it requires you to allocate larger memory for JVM process of Katalon Studio.
You should try allocating more memory to the JVM process of Katalon Studio. See the following post how to:
I could not find any description about the -Xmx in katalon.ini in the Katalon’s officail documations. I wonder why.
=> @Elly_Tran