Sorry, not clear what exactly error you have ?
Google Key - was removed in last version - because how google not require it.
For show some address in location map module you need set in location map modules so parameters:
Map Center - latitude
Map Center - longitude
Coordinates: Enter latitude, longitude, text message for the marker on your location map separated by semicolon (HTML code is supported). Each row is a new coordinate. For example: 50; 36.25; Orda Soft.
For check some address latitude, longitude - please go to maps.google.com - find yours place
check attachment, after that in URL to that place find LL parameters like ll=49.993174,36.22879
so that and yours latitude, longitude