phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'c7a33c9a2ecb3f0a35c1aacbfb8003f0' 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 ('c7a33c9a2ecb3f0a35c1aacbfb8003f0', -1, 1763327703, 1763327703, 'd849d830', -9, 0, 0)

Line : 187
File : sessions.php