Caught exception:

Mailchimp_Error: Mailchimp API versions 2.0 and Export 1.0 are no longer available. For more information see https://mailchi.mp/7a37f04b6eb2/api-export-10-and-api-20-retirement in /home/u76566p74415/domains/allinhotels.nl/public_html/Mailchimp/Mailchimp.php:253
Stack trace:
#0 /home/u76566p74415/domains/allinhotels.nl/public_html/Mailchimp/Mailchimp.php(228): Mailchimp->castError(Array)
#1 /home/u76566p74415/domains/allinhotels.nl/public_html/Mailchimp/Mailchimp/Lists.php(744): Mailchimp->call('lists/subscribe', '{"id":"080290a0...')
#2 /home/u76566p74415/domains/allinhotels.nl/public_html/wp-content/themes/allinhotels/functions.php(163): Mailchimp_Lists->subscribe('080290a024', Array, Array, 'text', false, true)
#3 /home/u76566p74415/domains/allinhotels.nl/public_html/wp-includes/shortcodes.php(433): add_to_mailchimp('', '', 'addtomailchimp')
#4 [internal function]: do_shortcode_tag(Array)
#5 /home/u76566p74415/domains/allinhotels.nl/public_html/wp-includes/shortcodes.php(273): preg_replace_callback('/\\[(\\[?)(addtom...', 'do_shortcode_ta...', '[addtomailchimp...')
#6 /home/u76566p74415/domains/allinhotels.nl/public_html/wp-includes/class-wp-hook.php(324): do_shortcode('[addtomailchimp...')
#7 /home/u76566p74415/domains/allinhotels.nl/public_html/wp-includes/plugin.php(205): WP_Hook->apply_filters('[addtomailchimp...', Array)
#8 /home/u76566p74415/domains/allinhotels.nl/public_html/wp-includes/post-template.php(256): apply_filters('the_content', '[addtomailchimp...')
#9 /home/u76566p74415/domains/allinhotels.nl/public_html/wp-content/themes/Divi/page.php(46): the_content()
#10 /home/u76566p74415/domains/allinhotels.nl/public_html/wp-includes/template-loader.php(106): include('/home/u76566p74...')
#11 /home/u76566p74415/domains/allinhotels.nl/public_html/wp-blog-header.php(19): require_once('/home/u76566p74...')
#12 /home/u76566p74415/domains/allinhotels.nl/public_html/index.php(17): require('/home/u76566p74...')
#13 {main}

Subscriber add attempt failed./home/u76566p74415/domains/allinhotels.nl/public_html