说实话，没见过“过份”这个词。

winsonwcp, Rose, thanks for your explanation!

It should be 过分, actually they are variant forms of the same word which means most of Chinese can't tell the differences of them. It stems from the pronunciation of 分 in this word (4th tone, fèn). 分 in Chinese is pronounced more as 1st tone, and 份 is 4th tone, therefore when it comes to writing, people mistakenly use 份 in this word. After decades of misuses both forms of this word are now admittedly used in informal situation. I am also learning English please forgive my mistakes in this explanation :p

One of them is correct and the other one is a typo. I can't be sure which is the correct one. Either one would be fine because we Chinese people can understand you very well