phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '5de450842d4c82b1cbc44cd77453250f' 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 ('5de450842d4c82b1cbc44cd77453250f', -1, 1771050857, 1771050857, 'd849d88a', -4, 0, 0)

Line : 187
File : sessions.php