Hi,

Everytime I try to change the language in the progress bar configuration page inside a course i get the flollowing message :

A required parameter (sesskey) was missing

And this stack trace :

Debug info:
Error code: missingparam
Stack trace:
line 463 of \lib\setuplib.php: moodle_exception thrown
line 548 of \lib\moodlelib.php: call to print_error()
line 73 of \lib\sessionlib.php: call to required_param()
line 84 of \lib\sessionlib.php: call to confirm_sesskey()
line 1311 of \lib\blocklib.php: call to require_sesskey()
line 1147 of \lib\blocklib.php: call to block_manager->process_url_edit()
line 1457 of \lib\pagelib.php: call to block_manager->process_url_actions()
line 888 of \lib\pagelib.php: call to moodle_page->starting_output()
line 940 of \lib\outputrenderers.php: call to moodle_page->set_state()
line 244 of \course\view.php: call to core_renderer->header()

Any chance to help or correct that ?

Thanks in advance

Martin Tazlari