Thanks for your reply. It show error message as listed as below:
Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 11 bytes) in /var/www/html/moodle/lib/dml/mysqli_native_moodle_database.php on line 1084
Next I adjust /etc/php.ini, set memory_limit = -1
And then run again, but it show another message as listed as below
Fatal error: Maximum execution time of 30 seconds exceeded in /var/www/html/moodle/lib/moodlelib.php on line 2484
So I adjust /etc/php.ini, max_execution_time = 120
And then run the log report, but it still can not run as shown as below: (Probably it's time out screen)
Any suggestion about next action , and thanks a lot.