Errore aggiornamento modulo paypal in prestashop 1.7.8.8

[Dreamer83]

Buongiorno sto cercando di aggiornare il modulo Paypal per un prestashop 1.7.8.8. ma ricevo il seguente errore 

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Symfony\Component\Debug\Exception\UndefinedMethodException

in modules/paypal/classes/Form/TechnicalChecklistForm.php (line 74)

            'merchantCountry' => $countryDefault->name,

            'tlsVersion' => $this->checker->checkTLSVersion(),

            'accountConfigured' => $this->method == null ? false : $this->method->isConfigured(),

            'sslActivated' => $this->module->isSslActive(),

            'localizationUrl' => $this->context->link->getAdminLink('AdminLocalization', true),

            'numberRedundantFiles' => count($this->module->getRedundantFiles()),

            'diagnosticPage' => $this->context->link->getAdminLink('AdminPaypalDiagnostic', true),

        ];

        if ($this->webhookOption->isEligibleContext()) {

            $tpl_vars['showWebhookState'] = true;

TechnicalChecklistForm->getDescription()in modules/paypal/controllers/admin/AdminPaypalConfigurationController.php (line 128)

AdminPaypalConfigurationController->renderConfiguration()in modules/paypal/controllers/admin/AdminPaypalConfigurationController.php (line 119)

AdminPaypalConfigurationController->initContent()in classes/controller/Controller.php (line 306)

ControllerCore->run()in classes/Dispatcher.php (line 525)

DispatcherCore->dispatch()in admin304gufnbs/index.php (line 93)

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