phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'a3fca9b7b99692777f4b0606ec856d8c' 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 ('a3fca9b7b99692777f4b0606ec856d8c', -1, 1760196483, 1760196483, 'd849d81d', -4, 0, 0)

Line : 187
File : sessions.php