Fatal error: Uncaught Error: [] operator not supported for strings in /data/www/vhosts/weblog-tst.tudelft.nl/data/prod/delft/wp-content/themes/lightword/functions.php:419
Stack trace:
#0 /data/www/vhosts/weblog-tst.tudelft.nl/data/prod/delft/wp-includes/class-wp-hook.php(326): lightword_fb_update_comment_type_cache()
#1 /data/www/vhosts/weblog-tst.tudelft.nl/data/prod/delft/wp-includes/plugin.php(256): WP_Hook->apply_filters()
#2 /data/www/vhosts/weblog-tst.tudelft.nl/data/prod/delft/wp-includes/class-wp-query.php(3530): apply_filters_ref_array()
#3 /data/www/vhosts/weblog-tst.tudelft.nl/data/prod/delft/wp-includes/class-wp-query.php(3824): WP_Query->get_posts()
#4 /data/www/vhosts/weblog-tst.tudelft.nl/data/prod/delft/wp-includes/class-wp.php(696): WP_Query->query()
#5 /data/www/vhosts/weblog-tst.tudelft.nl/data/prod/delft/wp-includes/class-wp.php(816): WP->query_posts()
#6 /data/www/vhosts/weblog-tst.tudelft.nl/data/prod/delft/wp-includes/functions.php(1336): WP->main()
#7 /data/www/vhosts/weblog-tst.tudelft.nl/data/pro in /data/www/vhosts/weblog-tst.tudelft.nl/data/prod/delft/wp-content/themes/lightword/functions.php on line 419
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