This page should be using theme boost_union which cannot be initialised. Nor can the site theme boost_union. Falling back to boost

line 460 of /public/lib/classes/output/theme_config.php: call to debugging()
line 1882 of /public/lib/pagelib.php: call to core\output\theme_config::load()
line 108 of /public/lib/classes/output/bootstrap_renderer.php: call to moodle_page->initialise_theme_and_output()
line 392 of /public/login/index.php: call to core\output\bootstrap_renderer->__call()

Welcome back

Mode	Cache item	Static	H	M	Primary store	H	M	S	I/O
App	core/capabilities	static accel.	2	2	default_application	2	0	0	185.9 KB
Ses	core/courseeditorstate				default_session	0	1	2	-
App	core/databasemeta	static accel.	1	4	default_application	4	0	0	19.9 KB
App	core/fontawesomeiconmapping	static accel.	0	1	default_application	1	0	0	25.3 KB
App	core/langmenu	static accel.	8	1	default_application	1	0	0	0.1 KB
Ses	core/navigation_cache				default_session	0	0	1	-
App	core/plugin_functions	static accel.	0	8	default_application	8	0	0	0.2 KB
App	core/plugin_manager				default_application	1	0	0	15.9 KB
App	core/routes				default_application	5	0	0	8.4 KB
App	core/string	static accel.	76	10	default_application	10	0	0	448.9 KB
App	core/yuimodules				default_application	3	0	0	8.7 KB

Store name	Cache store	H	M	S	I/O
static accel.		87	26	0	-
default_application	cachestore_file	35	0	0	713.4 KB
default_session	cachestore_session	0	1	3	-
Total		122	27	3	713.4 KB