Warnings in course format

[Martin Drlík]

Warning: krsort() expects parameter 1 to be array, boolean given in /var/www/html/course/format/etask/format.php on line 89

Warning: Invalid argument supplied for foreach() in /var/www/html/course/format/etask/format.php on line 91

Warning: Invalid argument supplied for foreach() in /var/www/html/course/format/etask/renderer.php on line 304

Warning: Invalid argument supplied for foreach() in /var/www/html/course/format/etask/renderer.php on line 311

Warning: Invalid argument supplied for foreach() in /var/www/html/course/format/etask/renderer.php on line 331

Fatal error: Call to undefined method format_etask::inplace_editable_render_section_name() in /var/www/html/course/format/etask/renderer.php on line 405