Function not available for this responsibility

Error Faced:
Function is not available for this responsibility.Contact your system
Administrator or change the responsibility
Reason:
When a custom module is defined and forms are being run from this custom_top,
Forms dont run from custom top in servlet mode but run in socket mode….this is because in servlet mode the environment is read from the file
$ORA_CONFIG_HOME/10.1.2/forms/server/default.env
The location of the FMX files is determined by the value set for CUSTOM_TOP. If
this location is not found the error as seen is raised.
To get the custom_top defined in default.env the following steps are to be followed:

Solution:
1.Submit the “Compile Security” Concurrent program with the parameter everything set to Yes to verify that all the menu functions are compiled properly.
2.Create your-own AutoConfig template file
2.1 Define a product_top
Use the Oracle Applications Manager Context Editor to add your custom product_top to the context file.
This will add the CUSTOM_TOP to the .xml file, so it picked up when the default.env is created by Autoconfig
Or if you are well acquainted with Auto-config and Context_name.xml, add the Custom top manually to Context_name.xml using any editor and save.
3.Run AutoConfig
4.Restart apps services
5.Retest.