The link explains that accurate means it is a correct accounting of all income and expenditure but that errors relate to the authorisation of that expenditure. So you might use the link in support of your corruption charges, perhaps, but not that the audits were not signed off.

Of course, the authorisation issues do not necessarily it was actually unauthorised overall; sometimes it might be spent in a later quarter than it was approved for, for example. This is not to say the EU is corruption free - the UK isn't either - but you need to be careful you are not distorting the position.