Is the Duolingo language test acceptable for this master’s program, maybe at the beginning temporarily until I get IELTS score? And if I can be possible, which score can be enough to be accepted?

Hola, Huseyn. Duolingo is not accepted as an official English test. In this link you can find the language requirements according to your country of origin and the exams that are accepted for the admission process

https://www.saxion.edu/studying-in-the-netherlands/application/admission-and-entry-requirements