phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '212c020cd79a4c5c0de0493fc3f618bd' 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 ('212c020cd79a4c5c0de0493fc3f618bd', -1, 1765932057, 1765932057, 'd849d850', -9, 0, 0)

Line : 187
File : sessions.php