i cant see the html editor on admin part where text inputs as like before update i had for the album description. i even dont get any error on browser. it just simply not loading up.

is there something i can do to re get it back in work ?

TinyMCE is a plugin

sorry if i made mistake by saying TinyMCE. but yea i think thats what not working on admin part album description to make it possible to have html description.

Given the other issues you reported I would suspect that something got wrong with the upload of the files and recommend a reupload of all files.