API Get Record Issue

Good day,

Since a while I am having an issue with viewing a single record “Get Record”… it has pass 1 week and i just cannot solve the issue.

I am using Backendless and Appgyver, this is what appears when I run a test.

I have no issues with “Get Collection”, only wit “Get Record”… I dont understand why.
Does anyone know what the issue may be and point me in the right direction?