alignment problem

Hello ,

I started using Trados recently for a project I'm working on and I had a problem when I tried to align tow docx documents form a project I created on Trados . The error is the following :

it Failed to open and the message says : SDL XLIFF validation error at line 666 offset 358423 the key sequence a401cbb9-2adb-4516-9a1e-1eb2fc6759c9 in urn oasis names tc xliff document .

And I remember  when I was editing the document that refused to align, there were an error message and I don't remember which lines  that contained errors. Do you have any ideas?

 

 

Thank you in advance

 

Sarah