String [summaryof,core] is deprecated. Either you should no longer be using that string, or the string has been incorrectly deprecated, in which case you should report this as a bug. Please refer to https://moodledev.io/general/projects/api/string-deprecation

• line 397 of /lib/classes/string_manager_standard.php: call to debugging()
• line 7001 of /lib/moodlelib.php: call to core_string_manager_standard->get_string()
• line 58 of /course/info.php: call to get_string()

The 'remuiformat' course format does not define the format_remuiformat\output\renderer renderer class. This is required since Moodle 4.0.

• line 1526 of /course/format/classes/base.php: call to debugging()
• line 3483 of /course/lib.php: call to core_courseformat\base->get_renderer()
• line 82 of /theme/remui/layout/common.php: call to core_course_drawer()
• line 33 of /theme/remui/layout/incourse.php: call to require_once()
• line 972 of /lib/classes/output/core_renderer.php: call to include()
• line 888 of /lib/classes/output/core_renderer.php: call to core\output\core_renderer->render_page_layout()
• line ? of unknownfile: call to core\output\core_renderer->header()
• line 109 of /lib/classes/output/bootstrap_renderer.php: call to call_user_func_array()
• line 62 of /course/info.php: call to core\output\bootstrap_renderer->__call()