Advance search form, run-time error 3008 (1 Viewer)

In my classical search form (primary form) users put some name and get information refers to that name from table where that name is primary key. I made ‘advance search’ form(secondary form) which can open from the primary form. Secondary form also pull up information from the same table, but problem appears when I want to do the , get:

Run-time error 3008
Your table is already open ……bla,bla……… and cannot be manipulated programmatically

Can anyone help me with this?

Thanks in advance!

Ok I somewhere,on this forum, read that if you don't know what wrong with your database just copy to new database.
I may say, that note solved my problem, I don't know how, but hope find soon!