phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '2f2c6515e0d2d9aba87056a8abe539d9' 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 ('2f2c6515e0d2d9aba87056a8abe539d9', -1, 1769152161, 1769152161, 'd849d8bf', -201, 0, 0)

Line : 187
File : sessions.php