phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '7785f296514f8a92d1666b531255b590' 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 ('7785f296514f8a92d1666b531255b590', -1, 1767146136, 1767146136, 'd849d803', 12, 0, 0)

Line : 187
File : sessions.php