I need help on how to fix Fatal error.
It happened when i downloaded the contact form 7 plugin and when i clicked the activate buttton the message below pop out. This message prevent me from accessing the backend of my website.

Please i really need help.

Fatal error: Uncaught Error: Call to undefined function wpcf7_add_shortcode() in /home3/africsis/public_html/bethelbright/wp-content/plugins/contact-form-7-simple-hidden-field/cf7-simple-hidden-field.php:30 Stack trace: #0 /home3/africsis/public_html/bethelbright/wp-includes/class-wp-hook.php(298): wpcf7_simple_hidden_field->init(”) #1 /home3/africsis/public_html/bethelbright/wp-includes/class-wp-hook.php(323): WP_Hook->apply_filters(NULL, Array) #2 /home3/africsis/public_html/bethelbright/wp-includes/plugin.php(453): WP_Hook->do_action(Array) #3 /home3/africsis/public_html/bethelbright/wp-settings.php(325): do_action(‘plugins_loaded’) #4 /home3/africsis/public_html/bethelbright/wp-config.php(93): require_once(‘/home3/africsis…’) #5 /home3/africsis/public_html/bethelbright/wp-load.php(37): require_once(‘/home3/africsis…’) #6 /home3/africsis/public_html/bethelbright/wp-admin/admin.php(31): require_once(‘/home3/africsis…’) #7 /home3/africsis/public_html/bethelbright/wp-admin/index.php(10): require_once(‘/home3/africs in /home3/africsis/public_html/bethelbright/wp-content/plugins/contact-form-7-simple-hidden-field/cf7-simple-hidden-field.php on line 30