Please check whether your Jaspersoft patch[6.2.1_5.2.1.4.33 ] has applied correctly,
Check your Jaspersoft server version and patch details,
<JasperHostname>:<portnumber>/reportservice/version.htm
Check the Users Home Directory of Jasperserver whether the latest license file is reflected or not.
If everything looks good perform the below steps and check whether you are able to access the application,
1. Stop the Jaspersoft Tomcat services.
2. Delete the files under Apache Tomcat temp and work directory.
3. Start the Jaspersoft Tomcat service.
4. Access the Jaspersoft Console URL
Check the Jasperserver logs for more information.