Debug info:
Error code: generalexceptionmessage
$a contents: Failed opening required '[dirroot]/mod/resource/lib.php' (include_path='/mnt/www/moodle2-51103/public/lib/pear:.:/usr/share/php')

Stack trace:

• line 27 of /public/mod/resource/view.php: Error thrown

Debug info:
Error code: generalexceptionmessage
$a contents: array_key_exists(): Argument #2 ($array) must be of type array, null given

Stack trace:

• line 2184 of /public/lib/classes/output/theme_config.php: TypeError thrown
• line 2184 of /public/lib/classes/output/theme_config.php: call to array_key_exists()
• line 2249 of /public/lib/classes/output/theme_config.php: call to core\output\theme_config->layout_info_for_page()
• line 1850 of /public/lib/pagelib.php: call to core\output\theme_config->setup_blocks()
• line 108 of /public/lib/classes/output/bootstrap_renderer.php: call to moodle_page->initialise_theme_and_output()
• line 178 of /public/lib/setuplib.php: call to core\output\bootstrap_renderer->__call()
• line 0 of unknownfile: call to default_exception_handler()