phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'f1ff9b8fce9f4e8ed3271d098a11158c' 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 ('f1ff9b8fce9f4e8ed3271d098a11158c', -1, 1764099830, 1764099830, 'd849d81c', -4, 0, 0)

Line : 187
File : sessions.php