Problème Paypal dans prestashop et erreur 500

Suite à un changement de serveur dédié, j'ai toujours une erreur 500 lors d'un achat avec paypal. Je recherche quelqu'un qui puisse résoudre ce problème, voici l'erreur que j'ai: Notice: Undefined index: RedirectRequired in /home/rosmant/domains/[login to view URL] on line 312 Fatal error: Uncaught Unknown column 'round_type' in 'field list' INSERT INTO `ps_orders` (`id_address_delivery`, `id_address_invoice`, `id_cart`, `id_currency`, `id_shop_group`, `id_shop`, `id_lang`, `id_customer`, `id_carrier`, `current_state`, `secure_key`, `payment`, `module`, `recyclable`, `gift`, `gift_message`, `mobile_theme`, `total_discounts`, `total_discounts_tax_incl`, `total_discounts_tax_excl`, `total_paid`, `total_paid_tax_incl`, `total_paid_tax_excl`, `total_paid_real`, `total_products`, `total_products_wt`, `total_shipping`, `total_shipping_tax_incl`, `total_shipping_tax_excl`, `carrier_tax_rate`, `total_wrapping`, `total_wrapping_tax_incl`, `total_wrapping_tax_excl`, `round_mode`, `round_type`, `shipping_number`, `conversion_rate`, `invoice_number`, `delivery_number`, `invoice_date`, `delivery_date`, `valid`, `reference`, `date_add`, `date_upd`) VALUES ('42', '42', '72', '2', '1', '1', '2', '5', '7', '0', 'cf8a660f42729db99eeff0c0b02282dc', 'PayPal', 'paypal', '0', '0', NULL, '0', '0', '0' in /home/rosmant/domains/[login to view URL] on line 791