phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '18c1d27faca977697759eb2f20a4f5b7' 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 ('18c1d27faca977697759eb2f20a4f5b7', -1, 1767245557, 1767245557, 'd849d819', -9, 0, 0)

Line : 187
File : sessions.php