The 'possible cheating' issue is created because your antivirus is thinking that dsace.dll is a virus. This is a false positive and the file contains no harm, it is just because of the way the file works.
As a result of that, your antivirus isolates the file and blocks any access to it, which means that your game can't load that file. Because that file is not loaded, the servers anti cheat engine thinks that you might be cheating.