Index: lams_monitoring/web/timeLimit5.jsp
===================================================================
diff -u -r0083f3733489a25a89db5cfa6810303c015acd8f -reccd6838790a4369b6788e48fb5ae5851622fe35
--- lams_monitoring/web/timeLimit5.jsp	(.../timeLimit5.jsp)	(revision 0083f3733489a25a89db5cfa6810303c015acd8f)
+++ lams_monitoring/web/timeLimit5.jsp	(.../timeLimit5.jsp)	(revision eccd6838790a4369b6788e48fb5ae5851622fe35)
@@ -504,7 +504,7 @@
 	}
 </script>
 
-<c:set var="absoluteTimeLimitEnabled" value="${not empty param.absoluteTimeLimitFinish}" />
+<c:set var="absoluteTimeLimitEnabled" value="${not empty param.absoluteTimeLimitFinish and param.absoluteTimeLimitFinish != 'null'}" />
 <c:set var="relativeTimeLimitEnabled" value="${param.relativeTimeLimit != 0}" />
 
 <div class="card mt-4" id="time-limit-panel">