Particular revision of the source code is not displayed in Code explorer ("Not found in manifest" error)

22 Mar 2018

When I click on one of my source files, I keep getting empty design page instead of source code listing.

When I click "Edit repository homepage", I get the following Error:

"An error occurred while processing your request Distance_HC_SR04.cpp/wiki/Homepage@a254dc462f4c: not found in manifest"

How can I fix it?