phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'c91ff443a068048fb007cdfe759f55c3' for key 'phpbb_sessions.PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('c91ff443a068048fb007cdfe759f55c3', -1, 1714072901, 1714072901, '1275c4b8', 16, 0, 0)

Line : 187
File : sessions.php