[From string (line 9) ]                                
                                                       
@startuml                                              
                                                       
                                                       
                                                       
                                                       
...                                                    
... ( skipping 112 lines )                             
...                                                    
    BackgroundColor #438DD5                            
    BorderColor #3C7FC0                                
}                                                      
                                                       
skinparam database<<container>> {                      
    StereotypeFontColor #FFFFFF                        
    FontColor #FFFFFF                                  
    BackgroundColor #438DD5                            
    BorderColor #3C7FC0                                
}                                                      
                                                       
                                                       
                                                       
                                                       
                                                       
                                                       
                                                       
rectangle "==aa system" <<system>> as aa               
rectangle "==bb system\n\n big system" <<system>> as bb
System(tm, 'label' , 'description')                    
^^^^^                                                  
 Syntax Error?