Deserializing error - Byte-Offset in XML

Hi SAP gurus,

I have created an ECC proxywith it corresponding logical port but when I test it using tcode SE80 I get the following error :

An error occurred when deserializing in the simple transformation program /1SAI/TXJE038DFBE1E36238B3600, Byte-Offset in XML: 671 , ST: /1SAI/TXJE038DFBE1E36238B3600, Line:

(When I test it using SOAPUI it runs ok)

I have search a solution but I haven't found any. I only found the next two threads but none of them is answered.

Can anybody help me please. I don't know the cause of this error.

Thanks in advance and have a nice day.