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Model definitions for standard models not found

Category: Software
Product Number: LTSpice
Software Version: 17.1.5

I updated my LTSpice version recently and somehow now the standard models are not found when I start a simulation run.

For example, if I place a transistor, I can select it from the components library and pick a transistor from the list:

If I select this one and add it to my schematic like so:

The configuration is as follows:

Then, if I run the simulation, it gives me the following error message:

I checked all the path settings, but it seems to be correct.

Any ideas on how to solve this?
Thanks in advance!