Hello, after updating to WordPress 5.6.1 i got the following errors on the Dashboard:
Warning: fopen(): Filename cannot be empty in /home/skiato/www/www/wp-includes/functions.php on line 6109
Warning: Cannot modify header information – headers already sent by (output started at /home/skiato/www/www/wp-includes/functions.php:6109) in /home/skiato/www/www/wp-includes/functions.php on line 6360
Warning: Cannot modify header information – headers already sent by (output started at /home/skiato/www/www/wp-includes/functions.php:6109) in /home/skiato/www/www/wp-admin/includes/misc.php on line 1310
Warning: Cannot modify header information – headers already sent by (output started at /home/skiato/www/www/wp-includes/functions.php:6109) in /home/skiato/www/www/wp-admin/admin-header.php on line 9
How can I fix them? Thank you!
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