phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'f72d19ab9e57e4b44cd8807eec3e72fa' for key 'phpbb_sessions.PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('f72d19ab9e57e4b44cd8807eec3e72fa', -1, 1770816952, 1770816952, 'd849d897', 10, 0, 0)

Line : 187
File : sessions.php