SSL certificate error - Unable to validate certificate

Tue May 23 18:12:38 EDT 2017

Can you please help me. I have used this app for years and now a 
problem. I have accepted it many times.

Frank
-------------- next part --------------
A non-text attachment was scrubbed...
Name: cert.JPG
Type: image/jpeg
Size: 29636 bytes
Desc: not available
URL: <https://pidgin.im/pipermail/support/attachments/20170523/2134f206/attachment-0001.jpe>