Error: mdb->get_record() found more than one record!

• line 1599 of /lib/dml/moodle_database.php: call to debugging()
• line 1660 of /lib/dml/moodle_database.php: call to moodle_database->get_record_sql()
• line 1641 of /lib/dml/moodle_database.php: call to moodle_database->get_field_sql()
• line 682 of /mod/chat/lib.php: call to moodle_database->get_field_select()
• line 36 of /mod/chat/view.php: call to chat_update_chat_times()

This page did not call $PAGE->set_url(...). Using https://elearn.univ-tlemcen.dz/mod/chat/view.php?forceview=1&id=39988&lang=en

• line 610 of /lib/pagelib.php: call to debugging()
• line 830 of /lib/pagelib.php: call to moodle_page->magic_get_url()
• line 1810 of /lib/questionlib.php: call to moodle_page->__get()
• line 4555 of /lib/navigationlib.php: call to question_extend_settings_navigation()
• line 4162 of /lib/navigationlib.php: call to settings_navigation->load_course_settings()
• line 769 of /lib/pagelib.php: call to settings_navigation->initialise()
• line 830 of /lib/pagelib.php: call to moodle_page->magic_get_settingsnav()
• line 3535 of /lib/navigationlib.php: call to moodle_page->__get()
• line 4460 of /lib/outputrenderers.php: call to navbar->get_items()
• line 42 of /theme/academi/layout/columns2.php: call to core_renderer->region_main_settings_menu()
• 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()