The article shows that the basic concepts of quantum physics have three major errors that are fatal to the whole theory. The first error is that in Planck's relation $E_n=nhu$ oscillators have only one energy level $E=hu$, the article explains how it arises, while the higher energy levels $nhu$ must be understood as runs of $n$ wavelengths of an oscillator. The second error is in Einstein's relation$E=pc$, in de Broglie's wavelength $lambda=h/p$ and in the concept of particle-wavedualism. The error is that $p$ in $E=pc$ is not the momentum of a photon and $p=Ev$ from de Broglie's wavelength $p=h/lambda$ and Planck's relation $E=hu$ is not the momentum of an oscillator. In both cases the correct formula is $p=mv_p$ where $v_p$ is the propagation speed of a matter wave. This error implies that particle-wave dualism is false. The third error is in the substitutions in the Schr"odinger equation. The substitution of momentum is in error because it confuses the momentum of an oscillator with the momentum in de Broglie's wavelength formula. The substitution of energy is incorrect becauseoscillators do not have several energy levels. As a result of the third error it is incorrect to make a Fourier transform from the momentum coordinates to spatial coordinates, which means that a basic method in the quantum field theory fails.