It's a problem with your antivirus. It's called SSL scanning. Just disable it. You are probably using ESET. If yes, then this is a solution to the problem:
Allow SSL communication with specific online services and wireless devices in ESET Windows home products - ESET Knowledgebase
If not, google for the same problem for your antivirus.
And yes, I do have the same problem as you, and it would be neat by FirstChoicePay to resolve this problem with their SSL certificate on their end.