phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '1b6d1f882d5264a73f7a85e32ad8f061' 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 ('1b6d1f882d5264a73f7a85e32ad8f061', -1, 1757237773, 1757237773, 'd849d8ab', -9, 0, 0)

Line : 187
File : sessions.php