WebCore/StellarDS - Locate record in Table

I bought an StellarDS account and populated a table with client-data using FNC-Cloud pack which works pretty good.
But when I want to retrieve a single particular record (a single client) in a WebCore app by using the StellarDataSet.locate command I get an index-error. the locate-function is compiled without any error.
Where do I find a sample, description or help about retrieving a certain record from a StellarDS-table in WebCore?

I'm trying to understand your issue.
The normal operation is that the StellarDS DataSet is filled with the records in the StellarDS table, i.e. if it contains multiple records, the dataset will have multiple records (unless you specify a filter and this filter would return just one record)
The DataSet.Locate function than set the active record in the dataset to the first matching record.
Are you doing something similar?

This is exactly what I do. I have for test reason 4 client-records in stellards. open the table and then select one client by the DataSet.locate function using the client-no for locating.
Unfortunately your website https://stellards.io/ is down at the moment and I can not login. I will send the error message I get with the locate function later when https://stellards.io is online again

I checked but https://stellards.io is working from here, please recheck