phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '9860d3fefa27c67d762b506106441f46' 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 ('9860d3fefa27c67d762b506106441f46', -1, 1766039150, 1766039150, 'd849d819', -9, 0, 0)

Line : 187
File : sessions.php