phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '251c6730366fea51f53db6e70b5c2752' for key 1

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('251c6730366fea51f53db6e70b5c2752', -1, 1715762991, 1715762991, '12de03ff', -4, 0, 0)

Line : 187
File : sessions.php