phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '629f129b5d8dcd7670f337944ce04d50' for key 'PRIMARY'

INSERT INTO phpbb_forumsessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('629f129b5d8dcd7670f337944ce04d50', -1, 1781192481, 1781192481, 'd849d8ce', -4, 0, 0)

Line : 187
File : sessions.php