Data prob

Hello, I dont unerstand why the form tells me that when I test it : 1 . [t_559703000000011051] Exception occured while setting value in PreparedStatement for the Column [photo_559703000000011598] Check whether the datatype for this column is given as specified in the data-dictionary .[t_559703000000011051] Exception occured while setting value in PreparedStatement for the Column [photo_559703000000011598] Check whether the datatype for this column is given as specified in the data-dictionary I wanted to put an upload field too and it said me the same.... but I took it back and ot tells me that either... thank you to help me. I also want to know, because I am not bilingual and wawt to understand well, regarding the public/private feature of this form : do I have to be public so the persons can use it ?! Thank you very much !