phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '2b2b309e9c669dca4d8c0211168f5eb9' 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 ('2b2b309e9c669dca4d8c0211168f5eb9', -1, 1768272088, 1768272088, 'd849d885', -9, 0, 0)

Line : 187
File : sessions.php