phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '64e36c87f2d8c525a788020f19dc624f' 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 ('64e36c87f2d8c525a788020f19dc624f', -1, 1711714792, 1711714792, '2cc11db8', -4, 0, 0)

Line : 187
File : sessions.php