phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '8211de1d3c025dcddb07bbd2c09cc3f2' 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 ('8211de1d3c025dcddb07bbd2c09cc3f2', -1, 1738204406, 1738204406, '12bfee06', -4, 0, 0)

Line : 187
File : sessions.php