Fatal error: Uncaught Error: Call to undefined function mb_strtoupper() in /srv/www/curious.care/dev/em/wp-content/themes/theme_v2/php/frontend/components/press-files.php:6
Stack trace:
#0 /srv/www/curious.care/dev/em/wp-content/themes/theme_v2/php/lib_wp/query.php(37): {closure}()
#1 /srv/www/curious.care/dev/em/wp-content/themes/theme_v2/php/frontend/components/press-files.php(22): pm\query\custom()
#2 /srv/www/curious.care/dev/em/wp-content/themes/theme_v2/php/lib_wp/loaders/components.php(40): include('...')
#3 /srv/www/curious.care/dev/em/wp-content/themes/theme_v2/php/lib_wp/gutenberg.php(26): pm\loader\component()
#4 /srv/www/curious.care/dev/em/wp-includes/class-wp-block.php(519): pm\gutenberg\{closure}()
#5 /srv/www/curious.care/dev/em/wp-includes/blocks.php(2061): WP_Block->render()
#6 /srv/www/curious.care/dev/em/wp-includes/blocks.php(2113): render_block()
#7 /srv/www/curious.care/dev/em/wp-includes/class-wp-hook.php(324): do_blocks()
#8 /srv/www/curious.care/dev/em/wp-includes/plugin.php(205): WP_Hook->apply_filters()
#9 /srv/www/curious.care/dev/em/wp-content/themes/theme_v2/php/frontend/components/single-page.php(10): apply_filters()
#10 /srv/www/curious.care/dev/em/wp-content/themes/theme_v2/php/lib_wp/loaders/components.php(40): include('...')
#11 /srv/www/curious.care/dev/em/wp-content/themes/theme_v2/php/frontend/pages/singlepage.php(16): pm\loader\component()
#12 /srv/www/curious.care/dev/em/wp-content/themes/theme_v2/php/lib_wp/loaders/components.php(136): include('...')
#13 /srv/www/curious.care/dev/em/wp-content/themes/theme_v2/php/frontend/router.php(22): pm\loader\page()
#14 /srv/www/curious.care/dev/em/wp-content/themes/theme_v2/index.php(9): include('...')
#15 /srv/www/curious.care/dev/em/wp-includes/template-loader.php(106): include('...')
#16 /srv/www/curious.care/dev/em/wp-blog-header.php(19): require_once('...')
#17 /srv/www/curious.care/dev/em/index.php(17): require('...')
#18 {main}
thrown in /srv/www/curious.care/dev/em/wp-content/themes/theme_v2/php/frontend/components/press-files.php on line 6