phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '4952e709ebb46115f287a5700d8d6bbb' for key '2phpbb_sessions.PRIMARY'

INSERT INTO 2phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('4952e709ebb46115f287a5700d8d6bbb', -1, 1782046943, 1782046943, 'd849d8ed', -4, 0, 0)

Line : 187
File : sessions.php