Your browser connects to our website using a protocol called HTTPS, which is supposed to provide a secure connection to stop anyone viewing or altering the data. This standard has evolved over time, but earlier versions of it have been shown to have security vulnerabilities. Newer, more secure versions of the standard have been supported by the latest browsers for several years. However, older browsers such as yours do not support the latest versions, and so are vulnerable to attacks.
All websites that take payments (not just Recon) are required to block older, insecure browsers by June 2018, and some payment providers will block access earlier. Even for sites that don’t take payments, in the interests of security and privacy they should eventually block access.
For your own security and privacy, and to avoid losing access to large numbers of websites, you need to upgrade or stop using your existing browser.