thank you for your reply,
unfortunately this did not work.
a new additional error will then occur
Warning: is_readable(): open_basedir restriction in effect. File(/home/bertdej152/domains/hondacb350f.nl/public_html/wp-content/plugins/the-events-calendar/the-events-calendar.php/lang/the-events-calendar-en_US.mo) is not within the allowed path(s): (/home/bertdej152/domains/hondacb350f.nl/:/home/bertdej152/domains/include/:/etc/pki/tls/certs:/tmp:/var/tmp:/usr/local/lib/php/:/usr/local/php81/lib/php/:/usr/local/php0/lib/php/) in?/home/bertdej152/domains/hondacb350f.nl/public_html/wp-includes/l10n.php?on line?763
