SDL Studio 2015 error message while opening a source text file for translation

Hi  experts,

while attempting to start a single file translation project with SDL Studio 2015, I am getting the following error message:

Here are some details:

1. I wish to translate DE ----> EN (United Kingdom); the source text is in a standard MS-Office 2010 Word file.

2. I have selected: the option " translate single file"; Source language German (Germany), Target language English (United Kingdom)

3. The TM is a file base TM created by Studio 2015 from a previous translation project. - which worked well.

4. If I click OK now, the Studio editor window opens, file loading icon appears but after a while (say 5 seconds), the a.m. error message pops up.

I have retried it 2 times by placing the source file at different locations (e.g. at Desktop etc.) but the same error message occurs.

Where am I going wrong? Can someone help please?

Thanks and best regards

Shyam Gupta