phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '78f4ca1bf856b1580dc474aa2b5ef825' 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 ('78f4ca1bf856b1580dc474aa2b5ef825', -1, 1711702568, 1711702568, '36a3da51', 14, 0, 0)

Line : 187
File : sessions.php