I did not have econometrics in my Bachelors degree syllabus separately...Will I get admission for MS in German Universities?

No, it would not hurt your chances. Have you heard of a post-bacc? A post-bacc is classes one takes after completing one's baccalaureate degree, hence post-bacc, in preparation for entering a graduate degree program.

It is standard that when a school requires coursework for a graduate degree program over and above the coursework a student completed in their undergraduate studies, they don't reject them out of hand but simply require they complete a post-bacc as a contingency for admission to the graduate degree program. Post-baccs are quite common.

For example, I didn't have to do a post-bacc, but a really good friend of mine got her bachelor's in classical literature from UNL. She went on to a master's degree at IU in what are commonly referred to as "Classics" with a capital C, which is the study of classical Greco-Roman antiquity. Because her undergraduate degree wasn't an exact match, IU required a whole slew of classes she didn't take in undergrad as prerequisite to matriculating her into its Classics program. How that played out was she had to complete a one-year post-bacc, which means she went to school full-time for a year at IU after she graduated from UNL before IU actually took her into its Classics degree but on the promise that if she did IU would.

By the way, the reason for post-baccs isn't to check off some requirement but to make sure you will succeed in the graduate program. Apparently, that particular program requires students have a very solid grasp of econometrics. What students learn stands on the shoulders of such knowledge to such extent that anyone without such knowledge flounders and fails. At the graduate level, criteria aren't nebulous like they are in undergrad; they are very practical, as in you really and truly won't be able to do this without knowing these other things first.