phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'a25bb9d59a92c1f5417da1de55f78d72' 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 ('a25bb9d59a92c1f5417da1de55f78d72', -1, 1763813386, 1763813386, 'd849d826', -4, 0, 0)

Line : 187
File : sessions.php