phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '638eab16b3371c2c69a44677be2b2b66' 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 ('638eab16b3371c2c69a44677be2b2b66', -1, 1757544341, 1757544341, 'd849d863', -9, 0, 0)

Line : 187
File : sessions.php