phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'e4f9829baf3a6f6fe87306ffaaa5f70b' 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 ('e4f9829baf3a6f6fe87306ffaaa5f70b', -1, 1768504364, 1768504364, '7f000001', -9, 0, 0)

Line : 187
File : sessions.php