Upgrade to latest YACS failed! YACS = down

it seems that some files are missing, maybe because crash during updrade.

the file /yacs/included/browser/library.js is missing, that's why tabs doesn't works.

by disabaling css on your page "/control", i can check that yacs is 9.5beta31.8

but it's difficult to check if some files are missing here or there, so we don't know if the updrade is finished or not.

Maybe you can decompress yacs' archive locally on your computer, then upload via FTP all the files, without overwriting existing files. It should bring back missing files.