phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '978a508760014415557783086b6b1acc' 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 ('978a508760014415557783086b6b1acc', -1, 1714236485, 1714236485, '0391bf16', 15, 0, 0)

Line : 187
File : sessions.php