phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'a7878b0bf52ac535a0a6643d24949b58' 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 ('a7878b0bf52ac535a0a6643d24949b58', -1, 1714293510, 1714293510, '1276a497', -4, 0, 0)

Line : 187
File : sessions.php