phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'a75790dc516eb4e0f265dbf8fe5eb4e9' for key 1

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('a75790dc516eb4e0f265dbf8fe5eb4e9', -1, 1784760179, 1784760179, 'd849d8b4', -4, 0, 0)

Line : 187
File : sessions.php