Magento Connect Manager throwing error; bug?

[drillsar12]

Every time, I install an extension through Magento Connect Manager I get the following error:

Exception during cache and session cleaning

I tried running Magento Cleanup file and then try again.

also tried downloader/lib/Mage/Archive/Helper/File/Gz.php in your Magento directory and replaced

$this->_fileHandler = @gzopen($this->_filePath, $mode);

with this

$this->_fileHandler = @gzopen64($this->_filePath, $mode);

Still having issue; my Php Version is 5.5 if that helps and my host is Site Ground. I am lost why I am getting this error. Nothing in the logs either.

[drillsar12]

is anyone else getting this error installing extensions through connect?

I cant to seem to figure out why I am getting this Exception during cache and session cleaning"

It may be bug for 1.9.3? I tested if I get same error with 1.8.1 and it don't.

[drillsar12]

here is a screenshot; I tried cleanup.php file; setting var dir to 777

and still get this