phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'f72387b6e378fc20e95848070d1c466e' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('f72387b6e378fc20e95848070d1c466e', -1, 1784468768, 1784468768, 'd849d926', 1, 0, 0)

Line : 187
File : sessions.php