You tried to reduce the limit for the maximum number of objects above 9999, which is not allowed. 
                  	 
 
            	 
            Resolution: 
                  		 
               		
                
                  		  
                  -  On the menu at the left side of the Enterprise Server Administration Web page, under 
                     			 Configure, click 
                     			 Options. 
                     		  
                  
- Click the 
                     			 General tab. 
                     		  
                  
- In the 
                     			 Maximum MF Directory Server object count field, type a value less than 9999. 
                     		  
                  
- Click 
                     			 OK.