SAP automation problems with activities


I have an issue regarding the SAP activities in Studio.
I followed all the parameters for SAP server and client. When I try to connect to SAP with uipath at the beginning it was working. I could use the activities (SAP logon, SAP login, Call transaction, …).
Suddenly, it wasn’t working anymore. I don’t know what’s happened. I put some screenshot about the message that it gives me.
What it’s weird, it’s that i can use “classic” activities like a “clikc” or “type into” and it’s working like this, but it’s much longer and more complicated.

Can anyone help me please ? is it from the server side ?

Thank you !
Regards !