phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'session_user_id'

INSERT INTO sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('51f2a4abb5fac7abe7cf8215d1aabcf4', -1, 1715177603, 1715177603, '038d1d91', 7, 0, 0)

Line : 189
File : sessions.php