phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '175343c8f85b616cca67d0cbc0b55ba0' 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 ('175343c8f85b616cca67d0cbc0b55ba0', -1, 1770097378, 1770097378, 'd849d8a2', -4, 0, 0)

Line : 187
File : sessions.php