phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '6c78d42d923ed8cac512049624d96724' 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 ('6c78d42d923ed8cac512049624d96724', -1, 1790649891, 1790649891, 'd849d824', 5, 0, 0)

Line : 187
File : sessions.php