it is recommended that you have the cache turned on for performance. however, i will say that the clear cache does not work from the admin panel.
if you can get in ssh do the following to clear both cache and cache_public
rm -rf cache/*
rm -rf cache_public/*
that will clear them. and yes if you look in your ftp immediately there are some files that will be there, dont worry about it, they are regenerated.
you can also run this through WinSCP
it will fire the console and you will need to press the execute button.
make sure you put the * after the / otherwise, you will need to recreate the directories, and if you accidentally remove the cache directory, you will need to recreate the .htaccess file as well
Good Luck,
DosDawg
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