I am trying to create an event report but I am not able to filter a specific event in the Event filter, it shows as "None found" even when there are active events present and there is no error in the browser console. Kindly help me to fix the issue.
It can be a good idea to clear all CiviCRM caches. You can do that using the url https://www.yourdomain.com/civicrm/menu/rebuild.
Regarding the logs, you can turn on logging and debugging in CiviCRM (https://www.yourdomain.com/civicrm/admin/setting/debug?reset=1) and then have a look at the log available in Drupal's UI first: https://www.yourdomain.com/admin/reports/dblog