phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '1c61e8dbca8a196af92c47e96d00528f' 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 ('1c61e8dbca8a196af92c47e96d00528f', -1, 1770071981, 1770071981, 'd849d8a2', -4, 0, 0)

Line : 187
File : sessions.php