Getting error in Sqlite ios Failed to open db connection?

I'm building an iOS app using storyboards.I have integrated sqlite database in my app. I'm unable to insert data into the table,i'm getting this error: Failed to open db connection

I have created twoo more table with the same code that is working fine but this sports is my third table in which i'm getting this error.

here is my code

    //SQLlite database code used to get file path
    -(NSString *) getSportsFilePath
    {
     NSString * docsPath= NSSearchPathForDirectoriesInDomains (NSDocumentDirectory, NSUserDomainMask,  YES)[0];
     return [docsPath stringByAppendingPathComponent:@"sportsdb.db"];

    }

    -(int) createTable:(NSString*) filePath
    {
    sqlite3* db = NULL;
    int rc=0;
    rc = sqlite3_open_v2([filePath cStringUsingEncoding:NSUTF8StringEncoding], &db, SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE, NULL);
    if (SQLITE_OK != rc)
    {
    sqlite3_close(db);
    }
    else
    {
    char * query ="CREATE TABLE IF NOT EXISTS sportsselection (id INTEGER PRIMARY KEY AUTOINCREMENT, sportslist  TEXT)";
     char * errMsg;
    rc = sqlite3_exec(db, query,NULL,NULL,&errMsg);
   if(SQLITE_OK != rc)
   {
 NSLog(@"Failed to create table rc:%d, msg=%s",rc,errMsg);
   }
   sqlite3_close(db);
   }
  return rc;
   }

//SQLlite database code is used to insert data into the table
    -(int) insert:(NSString *)filePath withName:(NSString *)sportslist
    {
    sqlite3* db = NULL;
    int rc=0;
    rc = sqlite3_open_v2([filePath cStringUsingEncoding:NSUTF8StringEncoding], &db, SQLITE_OPEN_READWRITE , NULL);
    if (SQLITE_OK != rc)
    {
    sqlite3_close(db);
    NSLog(@"Failed to open db connection");
    }
    else
    {
    NSString * query  = [NSString
    stringWithFormat:@"INSERT INTO sportsselection (sportslist) VALUES (\"%@\")",sportslist];
     char * errMsg;
     rc = sqlite3_exec(db, [query UTF8String] ,NULL,NULL,&errMsg);
    if(SQLITE_OK != rc)
     {
    NSLog(@"Failed to insert record  rc:%d, msg=%s",rc,errMsg);
    }
    sqlite3_close(db);
    }
    return rc;
    }

     - (void)viewDidLoad {
     if( _sports){
    for (int j=0;j< _sports.count;j++)
    {
    int rc= [self insert:[self getSportsFilePath] withName: _sports[j]];
    if(rc != SQLITE_OK)
    {
    NSLog(@"Failed to insert record");
    }
    else
    NSLog(@"Record is added");
    }}
    }