Possible Solution 1 but Not recommended by support:
Unzip stat-config.war
Open WEB-INF/classes/structs.xml
Change the line :
<constant name="struts.devMode" value="true" />
to:
<constant name="struts.devMode" value="false" />
zip the stat-config folder
Solution 2.
Replace the new Stat 5.7.2 stat-agent.ear and stat-config.war files attached.
1. Stop the central agent
2. On the central agent machine copy the actual stat-agent.ear and stat-config.war somewhere out of the STAT_HOME.
3. Replace the files with this new ones.
4. Delete the tmp and work directory and the server.log
5. Restart the central agent.