phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '9b195b0b99ae9f94c006674e1fd44503' 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 ('9b195b0b99ae9f94c006674e1fd44503', -1, 1771887886, 1771887886, 'd849d8dd', -9, 0, 0)

Line : 187
File : sessions.php