This page did not call $PAGE->set_url(...). Using http://tele-ens.univ-oeb.dz/moodle/mod/chat/view.php?forceview=1&id=80630

• line 610 of /lib/pagelib.php: call to debugging()
• line 830 of /lib/pagelib.php: call to moodle_page->magic_get_url()
• line 42 of /admin/tool/mobile/lib.php: call to moodle_page->__get()
• line 653 of /lib/outputrenderers.php: call to tool_mobile_before_standard_html_head()
• line 83 of /theme/adaptable/layout/includes/head.php: call to core_renderer->standard_head_html()
• line 130 of /theme/adaptable/layout/includes/header.php: call to require_once()
• line 30 of /theme/adaptable/layout/columns2.php: call to require_once()
• line 1374 of /lib/outputrenderers.php: call to include()
• line 1304 of /lib/outputrenderers.php: call to core_renderer->render_page_layout()
• line 1941 of /lib/setuplib.php: call to core_renderer->header()
• line 64 of /mod/chat/view.php: call to bootstrap_renderer->__call()