phpBB : Critical Error

Error creating new session

DEBUG MODE

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

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('85ad91834e2f53d4b118a55464fa0773', -1, 1748988811, 1748988811, '030fba5f', -4, 0, 0)

Line : 190
File : sessions.php