Erro ao salvar config de boletos

Boa noite, amo o plugin e o servi?os do asaas ja indiquei a varias pessoas, mas me deparei com um erro justo do recurso que mais preciso agora, n?o consigo habilitar e salvar as configura??es de boleto código do erro

Detalhes do erro
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Um erro do tipo E_ERROR foi causado na linha 107 do arquivo /wp-content/plugins/woo-asaas/includes/installments/admin/settings/class-installments-settings.php. Mensagem de erro: Uncaught TypeError: Argument 1 passed to WC_Asaas\Installments\Admin\Settings\Installments_Settings::validate_interest_installment_field() must be of the type array, null given, called in /home/cloudpanel/htdocs/nomedosite.com.br/wp-content/plugins/woocommerce/includes/abstracts/abstract-wc-settings-api.php on line 142 and defined in /home/cloudpanel/htdocs/nomedosite.com.br/wp-content/plugins/woo-asaas/includes/installments/admin/settings/class-installments-settings.php:107
Stack trace:
#0 /wp-content/plugins/woocommerce/includes/abstracts/abstract-wc-settings-api.php(142): WC_Asaas\Installments\Admin\Settings\Installments_Settings->validate_interest_installment_field()
#1 /wp-content/plugins/woocommerce/includes/abstracts/abstract-wc-settings-api.php(212): WC_Settings_API->get_field_value()
#2 /wp-content/plugins/woo-asaas/includes/gateway/class-gateway.php(213): WC_Settings_API->process_adm