phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'f34f19a5c4a637e2005a41c90ac29704' 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 ('f34f19a5c4a637e2005a41c90ac29704', -1, 1770074745, 1770074745, 'd849d8a2', -4, 0, 0)

Line : 187
File : sessions.php