Parse error: Unterminated comment starting line 5217 in /mnt/web205/e3/09/5732309/htdocs/newWebsite/wp-includes/class-wp-theme-json.php on line 5217

Fatal error: Uncaught Error: Call to a member function set() on null in /mnt/web205/e3/09/5732309/htdocs/newWebsite/wp-includes/l10n.php:857
Stack trace:
#0 /mnt/web205/e3/09/5732309/htdocs/newWebsite/wp-includes/l10n.php(960): load_textdomain()
#1 /mnt/web205/e3/09/5732309/htdocs/newWebsite/wp-includes/class-wp-fatal-error-handler.php(49): load_default_textdomain()
#2 [internal function]: WP_Fatal_Error_Handler->handle()
#3 {main}
  thrown in /mnt/web205/e3/09/5732309/htdocs/newWebsite/wp-includes/l10n.php on line 857