Receive error when I try to upload a custom image for the Self-Service Portal Settings

Receive error when I try to upload a custom image for the Self-Service Portal Settings

Here is the error I get.

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

javax.servlet.ServletException org.apache.struts.action.RequestProcessor.processException(RequestProcessor.java:545) org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:486) org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274) org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482) org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:525) javax.servlet.http.HttpServlet.service(HttpServlet.java:717) javax.servlet.http.HttpServlet.service(HttpServlet.java:810) com.manageengine.servicedesk.common.filter.ResetThreadLocal.doFilter(ResetThreadLocal.java:26) com.adventnet.servicedesk.filter.EncodingFilter.doFilter(EncodingFilter.java:162) org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:350) com.adventnet.servicedesk.authentication.NTLMV2CredentialAssociationFilter.doFilter(NTLMV2CredentialAssociationFilter.java:34) com.adventnet.servicedesk.authentication.NTLMV2Filter.doFilter(NTLMV2Filter.java:176) org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:75) 

root cause

java.lang.NullPointerException com.adventnet.servicedesk.setup.action.SettingsAction.execute(SettingsAction.java:415) org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:484) org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274) org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482) org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:525) javax.servlet.http.HttpServlet.service(HttpServlet.java:717) javax.servlet.http.HttpServlet.service(HttpServlet.java:810) com.manageengine.servicedesk.common.filter.ResetThreadLocal.doFilter(ResetThreadLocal.java:26) com.adventnet.servicedesk.filter.EncodingFilter.doFilter(EncodingFilter.java:162) org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:350) com.adventnet.servicedesk.authentication.NTLMV2CredentialAssociationFilter.doFilter(NTLMV2CredentialAssociationFilter.java:34) com.adventnet.servicedesk.authentication.NTLMV2Filter.doFilter(NTLMV2Filter.java:176) org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:75)

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