The plugin BI publisher configuration has failed its perform method 13c

Workaround: If patching is not an option or the install/upgrade is already in progress, this issue can be fixed by following the steps:

1. Close the installer window.

2. Unset the CLASSPATH variable:

      $ export CLASSPATH=

3. Resume the Install/Upgrade using the runConfig.sh script:

      $ OMS_HOME/oui/bin> ./runConfig.sh ORACLE_HOME=$OMS_HOME MODE=perform ACTION=configure COMPONENT_XML={encap_oms.1_0_0_0_0.xml}

This takes a long time

Actually, it never opened. I was expecting it will show the GUI again

I just started it.  To know what the pots are. I went to 

/u04/app/oracle/product/Middleware/install/setupinfo.txt