Web Page error with enfold

Hello,

We are having this issue in our webpage, oneair.es. Do you have any solution?

2024/05/08 13:09:25 [error] 119155#119155: *466665 FastCGI sent in stderr: “PHP message: ******* Font config file not found (or empty) for font ‘flaticon’ at expected path: /www/oneaires_571/public/wp-content/uploads/avia_fonts/flaticon/config.jsonPHP message: PHP Fatal error: Uncaught TypeError: Cannot access offset of type string on string in /www/oneaires_571/public/wp-content/themes/enfold/framework/php/class-form-generator.php:1685
Stack trace:
#0 /www/oneaires_571/public/wp-content/themes/enfold/framework/php/class-form-generator.php(1118): avia_form->check_element(‘avia_14_1’, Array)
#1 /www/oneaires_571/public/wp-content/themes/enfold/framework/php/class-form-generator.php(416): avia_form->captcha(‘avia_14_1’, Array)
#2 /www/oneaires_571/public/wp-content/themes/enfold/config-templatebuilder/avia-shortcodes/contact/contact.php(1020): avia_form->create_elements(Array)
#3 /www/oneaires_571/public/wp-content/themes/enfold/config-templatebuilder/avia-template-builder/php/class-shortcode-template.php(1332): avia_sc_contact->shortcode_handler(Array, Array, ‘av_contact’, Array)
#4 /www/oneaires_571/public/wp-includes/shortcodes.php(433): aviaShortcodeTemplate->shortcode_handler_prepare(Array, ‘\n[av_contact_fi…’, ‘av_contact’)
#5 [inter” while reading response header from upstream, client: 37.19.221.175, server: oneair.es, request: “POST /renovaciones-revalidaciones/ HTTP/2.0”, upstream: “fastcgi://unix:/var/run/php8.1-fpm-oneaires.sock:”, host: “www.oneair.es:64685”, referrer: “https://www.oneair.es/”