Hello! Welcome to the community.
The Exception Breakpoint (0x80000003) error (on any software, not just WeMod) most commonly means either of the following:
- The software installation failed.
- The software files are corrupted.
- There is a memory leak on your machine.
- Your operating system is critically out of date.
For 1 and 2, see and follow the steps in this post: I can’t Install WeMod / "There was a error installing the application" - #2 by Ravenfyre.
For 3, you need to do a system file check scan to find and fix errors on your machine. This post on the Microsoft forum should help: https://answers.microsoft.com/en-us/windows/forum/all/how-do-i-get-rid-of-the-error-exception-break/cb222a25-89c2-4b36-910e-9130bc686cba
For 4, type “Update” into your task bar search box, then click the top result, which should be “Check For Updates”.