Since around the end of October 2018, the website for the City of Orlando was blocking visitors from Canadian IP addresses. The server that hosts the ESMap program is located in Canada, so call information from the Orlando Police Department (OPD) was unable to be retrieved.
As of December 27th 2018 this appears to be resolved on their end.
I’ve also noticed that call closing times are being reported in UTC instead of EST and I will be looking into that issue. This has been fixed.