If you have error message like the below you need to completely reinstall .Net Framework on your PC. There could be different text inside error message depending on application you are working.
Step by step instructions how to reinstall .Net Framework:
1. To completly remove all .Net Framework versions it’s necessary to download and run software called DotNetFX_Cleanup_Tool
2. After you run program select “.Net Framework – All versions” and click on “Cleanup now”
3. Reboot computer.
4. Download the latest .Net Framework pack.
This will fix all issues connected with “Could not load file or assembly ‘sorttbls.nlp’ or one of its dependencies. The system cannot find the file specified.” error message.