PHP Error id_product and Name and Category

[Entre-Copines]

Hello,

Since some time I have errors in my apache logs, this with the last version 2.4 of the module, here are the errors:

[Fri Aug 09 07:54:52.913289 2019] [proxy_fcgi:error] [pid 21105:tid 140486531852032] [client ] AH01071: Got error 'PHP message: PHP Notice: Undefined index: id_product in /var/www/clients/client1/web21/web/modules/ganalytics/ganalytics.php on line 474\nPHP message: PHP Notice: Undefined index: name in /var/www/clients/client1/web21/web/modules/ganalytics/ganalytics.php on line 519\nPHP message: PHP Notice: Undefined index: category in /var/www/clients/client1/web21/web/modules/ganalytics/ganalytics.php on line 520\n'

I have exactly the same errors on prestashop product pages only in debug mode.

thank you in advance for your help
Entre-Copines.be