What other plugins and theme do you use on the site?
Good moorning,
Theme is FitnessZone (https://fitnesszonewp.wpengine.com)
WordPress: 5.4.2
Plugins:
Advanced CF7 DB
bbPress
Booking Package SAASPROJECT
BuddyPress
Contact Form 7 (5.1.6)
Contact Form 7 Integración con RedSys (1.4.8)
Contact Form 7 Conditional Fields (1.9.9)
DesignThemes Core Features Plugin
Duplicate Page
Envato Market
EU Cookie Law
Google Analytics for WordPress by MonsterInsights
Kirki Customizer Framework
LayerSlider WP
Like This
Responsive Lightbox & Gallery
s2Member Framework
Simple Wp Sitemap
Slider Revolution
Timetable Responsive Schedule For WordPress
Ultimate Addons for WPBakery Page Builder
Unyson
WooCommerce
WP Mail SMTP
WPBakery Page Builder
WPML Multilingual CMS
WPML String Translation
YITH WooCommerce Wishlist
YITH WooCommerce Zoom Magnifier
Yoast SEO
Thank you for your help!
Edurne.
Try switching to the default theme and deactivating all plugins excluding Contact Form 7, bbPress, BuddyPress, Duplicate Page, Google Analytics for WordPress by MonsterInsights, WooCommerce, WP Mail SMTP, and Yoast SEO.
Why you are advised to deactivate plugins and switch to the default theme.
Okay, thank you very much.
However, and if it helps someone, I think that I have solved the problem installing the jquery-validation-for-contact-form-7 plugin
Thanks for your help.
Edurne.