Fatal Errors when DataBase command fails

Instead of checking for the number of affected rows, catch the Exception that's being thrown. You can handle the same situation you're trying now within the catch block.

I was already using an Try Catch when I call this function (it is inside a Modal). But I tried to make the Try Catch just around the Insert method or all the my $db function but it didn't prevent the request from being shut down and return status 500 to my browser.
I tried catch(Exception $ex){... and catch(FormatException $ex){

Here is what is happening to the request: (repair the echo "Hello World 1!!\n" and echo "Hello world 2!!\n")
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And here is the code I'm running:

Code:

public function addAudio($name, $path){

$db = \Config\Database::connect();
$builder_audio = $db->table('audios');
$flag = true;
try{

$db->transStart();

$data = [
'name' => $name,
'path' => $path
];
echo "Hello world 1!!\n";
$builder_audio->insert($data);
echo "Hello world 2!!\n";
if(!$db->affectedRows()){
$flag = false;
return $flag;
}

$db->transComplete();
return $flag;
}catch(FormatException $ex){
var_dump($ex);
die;
}

}