I have version 7.8.5 installed and get this error message. The installation is new without modification.
The folder metadata does not exist under “modules/Currencies”
Error: File [modules/Currencies/metadata/detailviewdefs.php] is missing. Unable to create because no corresponding HTML file was found.
Hhmm, I wonder why you had that double-entry of the Euro currency? On a fresh install…? Maybe there’s a bug in there somewhere, or can you find any other plausible explanation?
About the “versions” table, all I know is that it was part of 7.8 but doesn’t seem to be part of 7.9.
Are you now trying to upgrade to 7.9.1? Or are you seeing that error in 7.8.5?