Bug In The Product Features

i think i found a bug.When im trying to create features from xml file either with fn_update_product_feature or with a custom function i made talking straight to the database,they show just fine in the databse but in the front end i get this error when i open the modal

PHP Notice

Message

Undefined index: feature_id

Error at

C:\xampp2\htdocs\cs-cart4\app\controllers\backend\product_features.php, line: 84

Backtrace

			File:
		
			C:\xampp2\htdocs\cs-cart4\app\controllers\backend\product_features.php
	
			Line:
		
			84
	
			Function:
		
			{closure}
	
			File:
		
			C:\xampp2\htdocs\cs-cart4\app\functions\fn.control.php
	
			Line:
		
			680
	
			Function:
		
			include
	
			File:
		
			C:\xampp2\htdocs\cs-cart4\app\functions\fn.control.php
	
			Line:
		
			451
	
			Function:
		
			fn_run_controller
	
			File:
		
			C:\xampp2\htdocs\cs-cart4\admin.php
	
			Line:
		
			27
	
			Function:
		
			fn_dispatch
	
PHP Notice

Message

Undefined index: feature_type

Error at

C:\xampp2\htdocs\cs-cart4\app\controllers\backend\product_features.php, line: 85

Backtrace

			File:
		
			C:\xampp2\htdocs\cs-cart4\app\controllers\backend\product_features.php
	
			Line:
		
			85
	
			Function:
		
			{closure}
	
			File:
		
			C:\xampp2\htdocs\cs-cart4\app\functions\fn.control.php
	
			Line:
		
			680
	
			Function:
		
			include
	
			File:
		
			C:\xampp2\htdocs\cs-cart4\app\functions\fn.control.php
	
			Line:
		
			451
	
			Function:
		
			fn_run_controller
	
			File:
		
			C:\xampp2\htdocs\cs-cart4\admin.php
	
			Line:
		
			27
	
			Function:
		
			fn_dispatch
	

the error is random lets say i will pass for creation 20 filters,12 of them will have this error,if i delete them and pass them again different 12 will have this error.I searched this error when im trying to see what return the fn_get_product_feature_data() which is responsible to get the feature data for the product_features.php with one of the ids which have the error it returns empty array,if i try and call fn_get_product_feature_data from any other controller with the same id as before it return the data as it should.