ASA Programming Guide
  SQL Preprocessor Error Messages
    SQLPP errors

static statement names will not work properly if used by 2 threads

Probable cause 

You have used a static statement name and preprocessed with the -r reentrancy switch. Static statement names cause static variables to be generated that are filled in by the database. If two threads use the same statement, contention arises over this variable. Use a local host variable as the statement identifier instead of a static name.