This page should be using theme taltech4_boost which cannot be initialised. Nor can the site theme taltech4_boost. Falling back to boost

• line 713 of /lib/outputlib.php: call to debugging()
• line 1552 of /lib/pagelib.php: call to theme_config::load()
• line 1944 of /lib/setuplib.php: call to moodle_page->initialise_theme_and_output()
• line 171 of /mod/url/locallib.php: call to bootstrap_renderer->__call()
• line 271 of /mod/url/locallib.php: call to url_print_header()
• line 105 of /mod/url/view.php: call to url_print_workaround()