Import Items Bug

[random|:|sniper]

I have downloaded all the official material I can find, and some of my homebrew classes as well. But when I try to import my custom items, I get an error message:
Failed to import data.table item has no column named app_id (code 1): , while compiling: INSERT or REPLACE into item(id,name,category,subcategory,caster_level,price,weight,full_text,reference,aura,app_id) VALUES (?,?,?,?,?,?,?,?,?,?,?,?,)

I'm stumped as to what is wrong.

[Bas van Stein]

Hi, is this for the DnD5 app?
Could you send the file to info@vansteinengroentjes.nl , then I will have a look at it asap.

[random|:|sniper]

Yes, this is for the 5e app. Thanks for the quick reply!