Problem with prestashop 1.6

[Ilariod]

Versione di PrestaShop 1.6.1.23

Versione di PHP 7.0.33

Warning: openssl_decrypt(): IV passed is only 7 bytes long, cipher expects an IV of precisely 16 bytes, padding with \0 in /var/www/vhosts/baronidecarohome.it/httpdocs/classes/Rijndael.php on line 91

Parse error: syntax error, unexpected 'stores' (T_STRING), expecting ',' or ')' in /var/www/vhosts/baronidecarohome.it/httpdocs/controllers/front/StoresController.php on line 291

Appena vado in seo & url e modifico qualsiasi voce mi escono questi due errori.

When i go to seo& url and modify all voice there are this error .

HTTP ERROR 500

[Ilariod]

help

[Sharak]

It's not an error, but just a warning. Turn off debug mode by editing /config/defines.inc.php and changing this section:

/* Debug only */
if (!defined('_PS_MODE_DEV_')) {
	define('_PS_MODE_DEV_', true);
}
/* Compatibility warning */
define('_PS_DISPLAY_COMPATIBILITY_WARNING_', true);

to this:

/* Debug only */
if (!defined('_PS_MODE_DEV_')) {
	define('_PS_MODE_DEV_', false);
}
/* Compatibility warning */
define('_PS_DISPLAY_COMPATIBILITY_WARNING_', false);

This way warning won't be showing up, but errors will break your store and show blank page. Above settings should be true only in development. The moment you set your shop on production site these settings should be changed to false.

Edited May 22, 2019 by Sharak (see edit history)