phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '52b9730833fd88662ba51aac4cd5b979' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('52b9730833fd88662ba51aac4cd5b979', -1, 1777559605, 1777559605, 'c0a81010', -9, 0, 0)

Line : 187
File : sessions.php