Errors while updating dictionary

When running dictionary update on the same database (which had some recent slight modifications) I get following Error:

Invalid argument supplied for … Script: C:\Program Files (x86)\NetMake\v81\wwwroot\scriptcase\devel\class\interface
mDataDic.class.php linha: 1954

of course the php file is encrypted so I have no clue what is causing it. At this moment it seems like a bug.

Any ideas ?