phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '88adcf9a04f1a52cebef7a6b4d94939c' 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 ('88adcf9a04f1a52cebef7a6b4d94939c', -1, 1714200804, 1714200804, '340ef0b2', -10, 0, 0)

Line : 187
File : sessions.php