phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'c10fce2594d122d4452ed00879a9f860' 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 ('c10fce2594d122d4452ed00879a9f860', -1, 1770260186, 1770260186, 'd849d88f', -4, 0, 0)

Line : 187
File : sessions.php