BeatNet is state-of-the-art (Real-Time) and Offline joint music beat, downbeat, tempo, and meter tracking system using CRNN and particle filtering. (ISMIR 2021's paper implementation).
This is a common error and happens when your NumPy isn't either up to date or compatible with the rest of the packages. My recommendation is to update your NumPy package or reinstall it.
ValueError: numpy.ndarray size changed, may indicate binary incompatibility. Expected 96 from C header, got 88 from PyObject!