Since the last update getting "Fatal Error" pop-up from Putty

I don't use the VCS directly in phpstorm (I do commits, etc with a different tool).    Since the last update I get a putty pop-up every 5 minutes or so with the message "PuTTY Fatal Error  Disconnected: No supported authentication methods available (server sent: publickey)"

I do use a key w/ putty to work with the bitbucket repository but I cannot find anywhere in PhpStorm to configure this or otherwise stop it from contacting bitbucket (assuming that is actually what is happening).

I have been using PhpStorm for a 1/2 year (at least) and loving it.  This issue just came up with the last update and it actually took me a while to realize that the pop-up was happening only when PhpStorm was open.

I will ultimately likely move to using PhpStorm for VCS with Git but my needs are currently very simple and I  have no idea what half the  Git VCS options in PhpStorm even mean!