MonetDB: bulk insert failed due to weird characters

Hi,

I'm using "COPY INTO" to insert some data into MonetDB. The csv that I'm copying from has some weird characters like \367\251\240 in some string fields and it broke the insertion. The error that I got is:

!value from line x field y not inserted, expecting type clob

Does anyone know how to get around this problem? The version I'm using is MonetDB Database Server Toolkit v1.1 (Oct2014-SP4). Thanks.