phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '797ce59bc0bdcb1b6a6b1fd1096fda5f' 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 ('797ce59bc0bdcb1b6a6b1fd1096fda5f', -1, 1781897732, 1781897732, 'd849d949', 1, 0, 0)

Line : 187
File : sessions.php