phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '90fdaa3e7331facf1a1118b627d28831' 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 ('90fdaa3e7331facf1a1118b627d28831', -1, 1771261851, 1771261851, 'd849d8a7', 2, 0, 0)

Line : 187
File : sessions.php