:D .... Here I am :D
in my point of view we can invest that money of the other aspects to improve the quality of education on universities.
.... here you don't align your view with what your prompt talks about. You need to clearly say that whether you agree that professors' salaries should be increased in order to improve quality of university education or not. Do not say that indirectly, but make a clear statement that gives your view direct to the reader.
One of the hottest onetopics is that in order to improve quality of education, salaries of professor should be increase.
.... the word "one" gets repeated. Also it should be always "one of the many". For example, one of my
friends, one of the
schools, one of our
children .... the subject should always be in plural form because you are going to single out one from many.
One of the most important ways in which we can improve the quality of education is investment on the properties and equipment of university.
... here it's correct :)