phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '12254d77ae91cfa0349cb6d95f6d52db' 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 ('12254d77ae91cfa0349cb6d95f6d52db', -1, 1777486459, 1777486459, 'd849d94c', 3, 0, 0)

Line : 187
File : sessions.php