Hi Oskar,
You can run the health check tool in the SAP Screen Personas admin transaction - /PERSONAS/ADMIN . This tool will indicate if the latest client sources are implemented or not.
The latest version of SAP Screen Personas 3.0 SP02 is version 23 of the following SAP Note:
2222774 - SAP Screen Personas 3.0 SP02 : Update of Client Sources Files
Can you let me know the type of transaction ZTOOLS? Is it a report program or a program with screens etc. ?
If the error occurs with the latest version of the client, kindly open an incident. It is possible that the screen information sent from the backend somehow does not have the screen information for this transaction.
Best regards
Kranthi