Handle Try catch block in laravel - php

Question

I have to try-catch block for stripe payment to handle error responses, Now I am using laravel to code.
But after catching it gives me 500 internal server error, instead of storing an exception message, it catches the error with 500 Internal Server?
Here is my code:
try {
$customer = \Stripe\Customer::create([
'email' => $email,
'source' => $token,
]);
$customer_id = $customer->id;
$subscription = \Stripe\Subscription::create([
'customer' => $customer_id,
'items' => [['plan' => 'plan_id']], //plan-id is static as there is single plan
]);
$chargeJson = $subscription->jsonSerialize();
}
catch(Stripe_CardError $e) {
$error = $e->getMessage();
} catch (Stripe_InvalidRequestError $e) {
// Invalid parameters were supplied to Stripe's API
$error = $e->getMessage();
} catch (Stripe_AuthenticationError $e) {
// Authentication with Stripe's API failed
$error = $e->getMessage();
} catch (Stripe_ApiConnectionError $e) {
// Network communication with Stripe failed
$error = $e->getMessage();
} catch (Stripe_Error $e) {
// Display a very generic error to the user, and maybe send
// yourself an email
$error = $e->getMessage();
} catch (Exception $e) {
// Something else happened, completely unrelated to Stripe
$error = $e->getMessage();
}
$resp = array();
if(isset($chargeJson) && !empty($chargeJson['id'])) {
$resp['status'] = 1;
$resp['transactions_log'] = $chargeJson;
$resp['current_period_end'] = $chargeJson['current_period_end'];
$resp['transaction_id'] = $chargeJson['id']; // which is actually subcsription id
} else {
$resp['status'] = 0;
$resp['error'] = $error;
}
return $resp;
I am not sure how to handle it and store it.
I am pretty much sure I have catched the exception but I can't store it and further use it.