phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '0c1cb3ea6b442697c399c510c8e80f2e' 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 ('0c1cb3ea6b442697c399c510c8e80f2e', -1, 1766859195, 1766859195, 'd849d819', -9, 0, 0)

Line : 187
File : sessions.php