phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'd8519907d9631c629d9bb41dbf5a7ca8' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('d8519907d9631c629d9bb41dbf5a7ca8', -1, 1772314571, 1772314571, 'd849d813', 5, 0, 0)

Line : 187
File : sessions.php