phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'bde515d017a570bfa405e2a3a0e427ad' 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 ('bde515d017a570bfa405e2a3a0e427ad', -1, 1768416918, 1768416918, 'd849d861', 2, 0, 0)

Line : 187
File : sessions.php