phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '6c040c6b4957f05b137449e3b38e09a0' 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 ('6c040c6b4957f05b137449e3b38e09a0', -1, 1786362227, 1786362227, 'd849d93c', 1, 0, 0)

Line : 187
File : sessions.php