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

• line 694 of /lib/outputlib.php: call to debugging()
• line 1551 of /lib/pagelib.php: call to theme_config::load()
• line 1940 of /lib/setuplib.php: call to moodle_page->initialise_theme_and_output()
• line 65 of /user/profile.php: call to bootstrap_renderer->__call()