WDE005 Error but both have identical Collection Name

Hi Thanks.

I managed to solve this problem already. but new problem came out., I followed the same code patterns in dropdown filtering stated in Code Queen tutorial but I had been stuck at not able to view the dropdown list from the database. There’s a warning that says " The selectOption parameter at index 0 that is passed to the options function cannot be set to [object Object]. Options must contain either a non-null value or a non-null label."

Do you know how can I get rid of that?