This error is a missing C++ redistributable Package for Visual Studio 2013 file called (MSVCP120.dll).
To solve the issue:
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Open the C++ redistributable Package for Visual Studio 2013 downloadable link below:
download Visual C++ Redistributable Packages for Visual Studio 2013 -
Click Download and choose the file (vcredist_x86.exe) even if you are running X64 bit server version.
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Install the file.
Check Jalal W Hijazi Blog http://jwhijazi.blogspot.com/2015/05/solving-rotativa-unhandled-exception.html for more details.