phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'dbb433e9e9e91ea37aa2f5e605dd47db' for key 'phpbb_sessions.PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('dbb433e9e9e91ea37aa2f5e605dd47db', -1, 1771780213, 1771780213, '2d971ed8', 3, 0, 0)

Line : 187
File : sessions.php