appears to have a T4P cartridge mount on the arm. This should mean that it is already set up (more or less) correctly from the factory. In practice, a worn or damaged stylus may cause mistracking issues. Can you check that the cantilever (the short rod that the stylus is mounted on) is straight and there are no kinks in it. This being the case, look at the diamond itself and make sure it's free of dust and fluff. Use a soft brush, in a back to front motion only, to clean it.
There may be a trim screw for the tracking weight on the turntable somewhere, if problems persist it may be worth giving this a small turn. Bluetack on the headshell may cause record wear and stylus failure, not really recommended.
Let us know how you get on and welcome to the engine