link directory...can someone make this?

[Cobalt60]

Good afternoon,

I followed the link for the Link Directory in One Forum on MyBB 1.8.22 with XThreads 1.68 (Thanks a lot for that great plugin!).

Everything seem to working just fine - unless I enable the sort functionality on the category field.

This yields the following error:

SQL Error:
1054 - Unknown column 'tfd.xtldcat' in 'where clause'

Query:
SELECT COUNT(tid) AS threads FROM iioc_threads t WHERE fid = '44' AND (t.visible IN (1,-1,0)) AND (tfd.`xtldcat` LIKE "%parts%")


Do you maybe have a hint for me?

Thanks!