phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '6c047b66cd23a8a9fc5acad5fca10e83' 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 ('6c047b66cd23a8a9fc5acad5fca10e83', -1, 1766054189, 1766054189, 'd849d8a8', 1, 0, 0)

Line : 187
File : sessions.php