react-native-video error check

    AVURLAsset *textURLAsset;
    NSString *textUri = [_textTracks objectAtIndex:i][@"uri"];
    if ([[textUri lowercaseString] hasPrefix:@"http"]) {
      textURLAsset = [AVURLAsset URLAssetWithURL:[NSURL URLWithString:textUri] options:assetOptions];
    } else {
      textURLAsset = [AVURLAsset URLAssetWithURL:[self urlFilePath:textUri] options:nil];
    }
    [textURLAsset loadValuesAsynchronouslyForKeys:@[@"playable",@"tracks"] completionHandler:^{

        // Now tracks is available
        NSLog(@" total tracks %@", textURLAsset.tracks);
        
        NSError *error = nil;
        AVKeyValueStatus status =
            [textURLAsset statusOfValueForKey:@"tracks" error:&error];
        switch (status) {
            case AVKeyValueStatusLoaded:
                NSLog(@"AVKeyValueStatusLoaded");
                 break;
            case AVKeyValueStatusFailed:
                NSLog(@"AVKeyValueStatusFailed");
                break;
            case AVKeyValueStatusCancelled:
                NSLog(@"AVKeyValueStatusCancelled");
                break;
            default:
                NSLog(@"default");
                break;
        }
    }];