After configuring HTTPS on the TIBCO Spotfire Server according to the Configuring HTTPS documentation reference, the HTTPS TIBCO Spotfire Server web URL fails to load and the following error is seen in the "catalina.log" file found in the <Spotfire_server_install_dir>\tomcat\logs\ folder:

Caused by: java.io.IOException: Invalid keystore format

• This may be be an issue while generating the keystore. Try to regenerate the server certificate by following the steps of keystore generation, raising a CSR (Certificate Signing Request), and importing the certificate.
• Validate that the "certificateKeystoreFile" property in "server.xml" in <server installation>\tomcat\conf folder is pointing to the correct path and file.
• Validate that the "keytool.exe" path being used while generating the certificate is correct

• https://docs.tibco.com/pub/spotfire_server/7.11.0/doc/html/TIB_sfire_server_tsas_admin_help/GUID-58E436B3-A057-431C-B65C-92FCE34AB224.html