phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'ac0b1051aa5941f1c78505d31020170e' 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 ('ac0b1051aa5941f1c78505d31020170e', -1, 1714326986, 1714326986, '127678cc', -2, 0, 0)

Line : 187
File : sessions.php