Hi,
1/ Thank you LucaMs.
2/ Omarruben & Patrick:
you should look at your anti-virus because if the rest is good, it is likely to be the cause of the blockage.
I used to have Bitdefender blocking one of my applications without displaying any messages. Since I changed my anti-virus, I don't have this kind of problem anymore.
My application does not contain any malicious code, you can check it on virustotal. You can put an exception on this application and restart it.