This is a user to user English language only Support Forum.
There are many freely available online tools that you can use to translate your posts into English. Please make use of these tools before posting.
Please also provide the essential INFORMATION REQUIRED WHEN POSTING A QUESTION.
What monitor do you have and what is it's free sync range, for instance 45-75? If 144 is outside of the free sync range and you are set to 144 it won't be able to be turned on. Do you know for sure your monitor even supports Freesync?