Gmail cURL error 35: OpenSSL SSL_connect: SSL_ERROR_SYSCALL

Hi,
Thank you so much for this handy plugin that you made.
I using it about 8 months maybe more and configured google smtp, and everything was OK untill last night, about 2 hours after updating new version, I received this error:
Gmail cURL error 35: OpenSSL SSL_connect: SSL_ERROR_SYSCALL in connection to www.googleapis.com:443 wp mail)
and did everything but couldn’t fix it