fnd_file.put_line ora-20100

We are getting intermitternt ora-20100 from our custom EBS pakcages. There's no issue with either permissions or access from server side. This code is being called from many places including SOA and other web services. Can you help. Code is as below PROCEDURE print_log(       p_pkg_in                  IN      VARCHAR2     , p_msg_in                  IN      VARCHAR2 )   IS   BEGIN       apps.fnd_file.put_line( apps.fnd_file.LOG, p_pkg_in || ': ' || p_msg_in );       apps.xxcorp_comn_err_pkg.log_error( p_pkg_name_in          => pv_pkg_name_txt                                         , p_proc_fun_name_in      => p_pkg_in                                         , p_unique_id_in          => 'LOG001' || '-' || pv_record_id                                         , p_statement_id_in      => pv_err_pos_num                                         , p_error_code_in        => 'LOG'                                         , p_error_message_in      => p_msg_in );   EXCEPTION       WHEN OTHERS       THEN         DBMS_OUTPUT.put_line                             (    'Exception Raised