phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '1883d91d5de5cdc90120366edcab867c' 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 ('1883d91d5de5cdc90120366edcab867c', -1, 1764741753, 1764741753, 'd849d8de', -9, 0, 0)

Line : 187
File : sessions.php