Error message on executing tables says table doesn't exist

Hi!

recently I helped a customer who was changing IT providers with installing their TimeXtender in the new environment. 

At this moment when executing a table they get an error message saying the following: 

Cannot find the object "O_BAE_BTW_CODES_R" because it does not exist or you do not have permissions.

Details:

SQL Server: 'ohs-sql1'

SQL Procedure: ''

SQL Line Number: 2

SQL Error Number: 1088

This concerns a table in the DSA layer of their TX environment. And is a table that does actually exist when we check the database in SSMS. The error message appears on the following step: 

Execute DSA dbo.O_BAE_BTW_CODES ODX transfers

Permissions have been checked multiple times, the concerned user accounts have db_datareader & db_datawriter privileges at the very least.