It works fine on my computer.
I don't think this is an issue with the app, but rather a Windows issue. It could be because of corrupt windows files, or some other app preventing necessary systems calls. I would first try reinstalling Comics++, else see:
https://answers.microsoft.com/en-us/windows/forum/apps_windows_10-photos-winpc/win-10-photos-app-remote-procedure-call-failed/2bab109d-4eef-4270-a7d1-1cc5874dd5e9
https://superuser.com/questions/963719/windows-10-the-remote-procedure-call-failed-error-when-opening-image-with-phot
edit: see next post
https://answers.microsoft.com/en-us/windows/forum/apps_windows_10-photos-winpc/win-10-photos-app-remote-procedure-call-failed/2bab109d-4eef-4270-a7d1-1cc5874dd5e9
https://superuser.com/questions/963719/windows-10-the-remote-procedure-call-failed-error-when-opening-image-with-phot
edit: see next post