phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'a5eb78d5ff53f289c9b2b2a4ada814df' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('a5eb78d5ff53f289c9b2b2a4ada814df', -1, 1785904024, 1785904024, 'd849d998', -9, 0)

Line : 158
File : sessions.php