A lot of bugs and notices on activation

Hello,

after a clean installation, with the WP_DEBUG true, there are a lot’s of notices.

I report all notices in the WP-admin

Notice: Undefined index: abilita_modulo_ricorrenze in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 91 Notice: Undefined index: cartasi_alias_rico in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 92 Notice: Undefined index: cartasi_mac_rico in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 93 Notice: Undefined index: gruppo_rico in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 94 Notice: Undefined index: notice_recurring in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 100 Notice: Undefined index: abilita_modulo_ricorrenze in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 91 Notice: Undefined index: cartasi_alias_rico in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 92 Notice: Undefined index: cartasi_mac_rico in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 93 Notice: Undefined index: gruppo_rico in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 94 Notice: Undefined index: notice_recurring in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 100 Notice: Undefined index: cartasi_alias in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 86 Notice: Undefined index: cartasi_mac in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 87 Notice: Undefined index: cartasi_form_language in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 88 Notice: Undefined index: cartasi_modalita_test in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 89 Notice: Undefined index: abilita_modulo_oneclick in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 90 Notice: Undefined index: abilita_modulo_ricorrenze in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 91 Notice: Undefined index: cartasi_alias_rico in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 92 Notice: Undefined index: cartasi_mac_rico in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 93 Notice: Undefined index: gruppo_rico in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 94 Notice: Undefined index: cartasi_alias_oneclick in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 95 Notice: Undefined index: cartasi_mac_oneclick in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 96 Notice: Undefined index: gruppo_oneclick in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 97 Notice: Undefined index: msg_payment_success in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 98 Notice: Undefined index: notice_oneclick in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 99 Notice: Undefined index: notice_recurring in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 100 Notice: Undefined index: cartasi_alias in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 86 Notice: Undefined index: cartasi_mac in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 87 Notice: Undefined index: cartasi_form_language in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 88 Notice: Undefined index: cartasi_modalita_test in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 89 Notice: Undefined index: abilita_modulo_oneclick in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 90 Notice: Undefined index: abilita_modulo_ricorrenze in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 91 Notice: Undefined index: cartasi_alias_rico in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 92 Notice: Undefined index: cartasi_mac_rico in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 93 Notice: Undefined index: gruppo_rico in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 94 Notice: Undefined index: cartasi_alias_oneclick in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 95 Notice: Undefined index: cartasi_mac_oneclick in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 96 Notice: Undefined index: gruppo_oneclick in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 97 Notice: Undefined index: msg_payment_success in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 98 Notice: Undefined index: notice_oneclick in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 99 Notice: Undefined index: notice_recurring in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 100 Notice: Undefined index: cartasi_alias in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 86 Notice: Undefined index: cartasi_mac in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 87 Notice: Undefined index: cartasi_form_language in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 88 Notice: Undefined index: cartasi_modalita_test in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 89 Notice: Undefined index: abilita_modulo_oneclick in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 90 Notice: Undefined index: abilita_modulo_ricorrenze in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 91 Notice: Undefined index: cartasi_alias_rico in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 92 Notice: Undefined index: cartasi_mac_rico in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 93 Notice: Undefined index: gruppo_rico in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 94 Notice: Undefined index: cartasi_alias_oneclick in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 95 Notice: Undefined index: cartasi_mac_oneclick in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 96 Notice: Undefined index: gruppo_oneclick in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 97 Notice: Undefined index: msg_payment_success in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 98 Notice: Undefined index: notice_oneclick in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 99 Notice: Undefined index: notice_recurring in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 100 Notice: Undefined index: cartasi_alias in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 86 Notice: Undefined index: cartasi_mac in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 87 Notice: Undefined index: cartasi_form_language in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 88 Notice: Undefined index: cartasi_modalita_test in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 89 Notice: Undefined index: abilita_modulo_oneclick in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 90 Notice: Undefined index: abilita_modulo_ricorrenze in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 91 Notice: Undefined index: cartasi_alias_rico in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 92 Notice: Undefined index: cartasi_mac_rico in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 93 Notice: Undefined index: gruppo_rico in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 94 Notice: Undefined index: cartasi_alias_oneclick in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 95 Notice: Undefined index: cartasi_mac_oneclick in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 96 Notice: Undefined index: gruppo_oneclick in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 97 Notice: Undefined index: msg_payment_success in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 98 Notice: Undefined index: notice_oneclick in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 99 Notice: Undefined index: notice_recurring in ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php on line 100 Warning: Cannot modify header information - headers already sent by (output started at ../wp-content/plugins/cartasi-x-pay/includes/class-wc-gateway-nexi-xpay.php:98) in ../wp-admin/includes/misc.php on line 1116