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 395 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()

Summary of No tool - Four Actions to Tackle Attrition-Attraction Long-term | Build IT University Learning Center

Four Actions

No tool - Four Actions to Tackle Attrition-Attraction Long-term

There’s still a war for talent, the war is simply now more targeted for qualified and capable talent. We’ll discuss 4 strategies that will help you to attract and retain the right people, rather than the people who are available right now.