Error when trying to run Trail Balance Summary report

[SpeedBWild]

Under Reports- Financial - Trail Balance -Summary
when I try and run the report I get the following error

Error in equation 'Trail Balance Summary for [YEAR]'
What does that mean? I have just upgraded to v 7.5.

Is there a conversion that did not take place? I can run the trail balance for previous years, just not the current year.

Thanks,

 

[klewis10367]

That report is probably a custom report that did not update.

 

[SpeedBWild]

So how do I fix it?