Ribosome Theme now "broken" after 3 months ??

I’ve used the Ribosome Theme since May 2016, no problems (WordPress.org blog via GoDaddy hosting). Yesterday, after installing CleanTalk spam filter plugin, and also Ad Inserter plugin, the theme is now “broken” and it reverted back to the default theme (2016). I tried disabling both plugins, deleting and reinstalling the Ribosome theme (since it said the “style sheet is missing”), and even restarting my computer twice. Not only with the upload of Ribosome not work, it won’t even complete the upload of ANY of the new themes I’ve tried. PLEASE HELP.