phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'ed35c7e18e358e5854f78b9a08a8ee87' 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 ('ed35c7e18e358e5854f78b9a08a8ee87', -1, 1773427844, 1773427844, 'd849d834', -4, 0, 0)

Line : 187
File : sessions.php