phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'b1c6519232784ef2d727fdf4d8ee181f' 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 ('b1c6519232784ef2d727fdf4d8ee181f', -1, 1755272704, 1755272704, 'd849d8bc', -4, 0, 0)

Line : 215
File : sessions.php