Fatal error: Uncaught TypeError: call_user_func(): Argument #1 ($callback) must be a valid callback, non-static method TreBiMeteo::Enable() cannot be called statically in /var/www/vhosts/abcode.it/subdomains/salernonotizie/httpdocs/wp-includes/class-wp-hook.php:305
Stack trace:
#0 /var/www/vhosts/abcode.it/subdomains/salernonotizie/httpdocs/wp-includes/class-wp-hook.php(331): WP_Hook->apply_filters(NULL, Array)
#1 /var/www/vhosts/abcode.it/subdomains/salernonotizie/httpdocs/wp-includes/plugin.php(474): WP_Hook->do_action(Array)
#2 /var/www/vhosts/abcode.it/subdomains/salernonotizie/httpdocs/wp-settings.php(587): do_action('init')
#3 /var/www/vhosts/abcode.it/subdomains/salernonotizie/httpdocs/wp-config.php(111): require_once('/var/www/vhosts...')
#4 /var/www/vhosts/abcode.it/subdomains/salernonotizie/httpdocs/wp-load.php(50): require_once('/var/www/vhosts...')
#5 /var/www/vhosts/abcode.it/subdomains/salernonotizie/httpdocs/wp-blog-header.php(13): require_once('/var/www/vhosts...')
#6 /var/www/vhosts/abcode.it/subdomains/salernonotizie/httpdocs/index.php(17): require('/var/www/vhosts...')
#7 {main}
thrown in /var/www/vhosts/abcode.it/subdomains/salernonotizie/httpdocs/wp-includes/class-wp-hook.php on line 305
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