ARAS - Filtering Block error

Hi guys, 

Need some help since we can't figure this one out.

In ARAS 12, on Administration, Query Definition, "Block to Doc(MI)", when adding the WHERE CONDITION 'Aras Doc No' LIKE $item_number and then executing the query, the following query error shows up:

<SOAP-ENV:Envelope xmlns:SOAP-ENV="">">
<SOAP-ENV:Fault xmlns:af="">">
<![CDATA[Specified method is not supported.]]>
<![CDATA[Specified method is not supported.]]>
<af:exception message="Specified method is not supported." type="System.NotSupportedException" />

but when taking the WHERE CONDITION and executing again, no errors shows up.

We are following steps from ARAS Community article but don't seem to work.

Any ideas why?