phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'a87b938f3f4509bf155747baffb8c7b5' 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 ('a87b938f3f4509bf155747baffb8c7b5', -1, 1715189844, 1715189844, 'c0a80201', 16, 0, 0)

Line : 187
File : sessions.php