phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'ad7c26b542f5555b34c7070ed8daffc2' 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 ('ad7c26b542f5555b34c7070ed8daffc2', -1, 1714350179, 1714350179, '12768adf', -4, 0, 0)

Line : 187
File : sessions.php