Whenever you attempt to go to your Jaspersoft server you get a 500 Internal Server Error. Tomcat starts successfully and you are able to get the Tomcat page to load when we go to that URL.
Error in jasperserver log:
2020-10-01 08:28:16,702 ERROR SystemErrorController,http-nio-8080-exec-6:83 [] - Internal server error
org.apache.jasper.JasperException: java.lang.NullPointerException
at org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:598)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.NullPointerException
at com.jaspersoft.jasperserver.war.themes.MTThemeResolver.getRootActive(MTThemeResolver.java:73)
at com.jaspersoft.jasperserver.war.themes.MTThemeResolver.resolveThemeName(MTThemeResolver.java:47)
at com.jaspersoft.jasperserver.war.themes.JSThemeResolver.resolveThemeName(JSThemeResolver.java:66)
at org.springframework.web.servlet.support.RequestContextUtils.getTheme(RequestContextUtils.java:151)
at org.springframework.web.servlet.support.RequestContextUtils.getTheme(RequestContextUtils.java:151)
Release : Any
Component : CLARITY JASPERSOFT
Check the permissions on the directory of the Apache Tomcat logs
If the above doesn't help, do a fresh install of Jaspersoft: