Hi Gordon,

I has deleted some failed quiz attempts. When I selected via all participants instead of a specific group, I got the follow coding error. non fatal. See below.

Moodle 2.6.2+ (Build: 20140314)

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Coding error detected, it must be fixed by a programmer: moodle_database::insert_record_raw() no fields found.

More information about this error
Debug info:
Error code: codingerror
Stack trace:

line 1065 of /lib/dml/mysqli_native_moodle_database.php: coding_exception thrown
line 1122 of /lib/dml/mysqli_native_moodle_database.php: call to mysqli_native_moodle_database->insert_record_raw()
line 325 of /mod/reader/admin.php: call to mysqli_native_moodle_database->insert_record()

Output buffer: Notice: Trying to get property of non-object in /home/www/HTTP/common/jaist-www/htdocs/celeste/moodle/mod/reader/admin.php on line 322