phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'b3311df9e151c8ff64070aef58f20e9a' 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 ('b3311df9e151c8ff64070aef58f20e9a', -1, 1766497547, 1766497547, 'd849d819', -9, 0, 0)

Line : 187
File : sessions.php