Bug - Report generation fails if the Passing Criteria is kept as 'None'

Description

The core produces the following stack trace:

com.eclipsesource.v8.V8ScriptCompilationException: undefined:8: SyntaxError: Unexpected token ;
        at com.eclipsesource.v8.V8._executeScript(Native Method)
        at com.eclipsesource.v8.V8.executeScript(V8.java:1079)
        at com.eclipsesource.v8.V8.executeScript(V8.java:682)
        at com.eclipsesource.v8.V8.executeObjectScript(V8.java:712)
        at com.eclipsesource.v8.V8.executeObjectScript(V8.java:695)
        at nl.tudelft.ewi.auta.j2v8.J2V8ScriptExecutionContext.submitScript(J2V8ScriptExecutionContext.java:108)
        at nl.tudelft.ewi.auta.core.report.ReportGeneratorNg.precompile(ReportGeneratorNg.java:145)
        at nl.tudelft.ewi.auta.core.report.ReportGeneratorNg.report(ReportGeneratorNg.java:76)
        at nl.tudelft.ewi.auta.core.report.ResultsProcessor.process(ResultsProcessor.java:76)
        at nl.tudelft.ewi.auta.core.communication.MessageReceiver.lambda$handle$0(MessageReceiver.java:231)
        at nl.tudelft.ewi.auta.common.threads.Threads.lambda$wrap$0(Threads.java:219)
        at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:834)

Priority - Medium

The submission shows the status as 'error' if this happens, should be fixed before demo.

Definition of done

When the reports are generated even if there are no passing criteria.