There is an other solution that also gets rid of any errors inside the code:
go to CLion Settings > Build,Execustion,Deployment -> Toolchain and there change the settings from MonGW to VisualStudio. Change Architecture to be amd64 and set Make, C Compiler and C++ Compiler to Let CMake Detect then Apply. In the CMake section change Build type: to Release. Apply and close settings and everything should work as expected.