Fatal error: Uncaught Error: Call to undefined function simplexml_load_string() in /home/clients/www/drupal/sites/all/modules/collapse_text/collapse_text.module:570
Stack trace:
#0 /home/clients/www/drupal/sites/all/modules/collapse_text/collapse_text.module(487): _collapse_text_process_child_item()
#1 /home/clients/www/drupal/sites/all/modules/collapse_text/collapse_text.module(246): _collapse_text_process_recurse_tree()
#2 /home/clients/www/drupal/sites/all/modules/collapse_text/collapse_text.module(66): collapse_text_process()
#3 /home/clients/www/drupal/includes/module.inc(480): collapse_text_filter()
#4 /home/clients/www/drupal/modules/filter/filter.module(466): module_invoke()
#5 /home/clients/www/drupal/modules/block/block.module(218): check_markup()
#6 /home/clients/www/drupal/includes/module.inc(480): block_block()
#7 /home/clients/www/drupal/modules/block/block.module(526): module_invoke()
#8 /home/clients/www/drupal/includes/theme.inc(1664): block_list()
#9 /home/clients/www/drupal/includes/theme.inc(675): theme_blocks()
#10 /home/clients/www/drupal/includes/theme.inc(1862): theme()
#11 /home/clients/www/drupal/includes/theme.inc(716): template_preprocess_page()
#12 /home/clients/www/drupal/index.php(42): theme()
#13 {main}
thrown in /home/clients/www/drupal/sites/all/modules/collapse_text/collapse_text.module on line 570