phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'a91b2cf5a348cc51a07cc5ba6a1fa0b7' for key 'phpbb_sessions.PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('a91b2cf5a348cc51a07cc5ba6a1fa0b7', -1, 1714121753, 1714121753, '038accd0', 0, 0, 0)

Line : 187
File : sessions.php