phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '988fa78e92815d0278e1983ba4d21d08' 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 ('988fa78e92815d0278e1983ba4d21d08', -1, 1715335825, 1715335825, '12e21cc5', -4, 0, 0)

Line : 187
File : sessions.php