Fixed Asset Period Closing - No Log

SOLVED

Hi, 

We are having an issue with the closing of a Period this month and cannot find out why, and I wonder if someone can help please?

The Statement of Context shows everything green, and when we select the company in the Period Closing window, the Contexts at the bottom is green too. When we choose OK the system thinks for a little while then simply kicks up back to the homepage of X3, and no log file is displayed.

It has always worked up until now, and it is the same if we try simulation or actual.

We have tried in our QA system and this works fine, and we have compared the FASCLOTURE scripts between both systems and they match.

Does anyone have any ideas why this is happeing or how do I troubleshoot where this problem lies please?

Thank you