phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '52ce1c79f3c373f95d3d58d47246f664' 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 ('52ce1c79f3c373f95d3d58d47246f664', -1, 1774267777, 1774267777, 'd849d817', 1, 0, 0)

Line : 187
File : sessions.php