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So I ran updates on a few plugins. Now I can’t log into WordPress. Only get a white window with these lines:
Warning: call_user_func_array() expects parameter 1 to be a valid callback, function ‘sfsi_checkmetas’ not found or invalid function name in /home3/gesund/public_html/wp-includes/class-wp-hook.php on line 286
Warning: Cannot modify header information – headers already sent by (output started at /home3/gesund/public_html/wp-includes/class-wp-hook.php:286) in /home3/gesund/public_html/wp-includes/pluggable.php on line 1251
Warning: Cannot modify header information – headers already sent by (output started at /home3/gesund/public_html/wp-includes/class-wp-hook.php:286) in /home3/gesund/public_html/wp-includes/pluggable.php on line 1254
Does anybody know what this means? Please help …