Error on New Fund creation : UI configuration

HI Expert ,

I am facing issue on web ui when i open new Fund screen "FUND"

and getting exception that null reference is passing for UI configuration

This start happening when standard configuration get deleted .

step 1: I have opened the component work bench :

step 2: Click on view : CRM_FM_FND_ATTR/FundAttrEOF

step 3 : go to Configuration and click on choose configuration

i have checked that for first configuration both Std. conf and Cus. Conf have "X"  . Can we remove "X" from Cus. Conf  .

or

Can we back the orginal configuration where onlyStd. conf have"X" .

Can any one help me .

Regards ,

Rishi verma