User completion of h5p content causes PDOException

All, I'm having the following issue on my drupal 7 based site with H5P interactive content. This occurs at the ends of a lesson when the user clicks the green finish button on H5P presentation interactive content.

PDOException: SQLSTATE[23000]: Integrity constraint violation: 1062 Duplicate entry '' for key 'uri': INSERT INTO {file_managed} (uid, filename, uri, filemime, filesize, status, timestamp) VALUES (:db_insert_placeholder_0, 

:db_insert_placeholder_1, :db_insert_placeholder_2, 

:db_insert_placeholder_3, :db_insert_placeholder_4, 

:db_insert_placeholder_5, :db_insert_placeholder_6); 

Array ( [:db_insert_placeholder_0] => 1 [:db_insert_placeholder_1] => [:db_insert_placeholder_2] => [:db_insert_placeholder_3] => application/octet-stream [:db_insert_placeholder_4] => 0 [:db_insert_placeholder_5] => 1 [:db_insert_placeholder_6] => 1531777949 ) in drupal_write_record() 

(line 7387 of /home/u47puwf29fqj/public_html/includes/common.inc).

Are there any known fixes or action I should take to resolve this? Or please share similar issues. 

Thanks, Dan