Hej!
Had the same problem just this moment.
My solution: Found in the servers error log:
“WordPress-Datenbank-Fehler COLLATION ‘utf8_general_ci’ is not valid for CHARACTER SET ‘utf8mb4’ f\xc3\xbcr Abfrage CREATE TABLE wp_8_terms (\n term_id….”
I chanced in the wp_config.php the character set to utf8:
define(‘DB_CHARSET’, ‘utf8’);
Now it works fine! I hope this helps you also!
