phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '88f6b1596b6f0283bc4965fc1f2ba350' 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 ('88f6b1596b6f0283bc4965fc1f2ba350', -1, 1760480472, 1760480472, 'd849d829', 2, 0, 0)

Line : 187
File : sessions.php