Dear ohad,

Please open the file components\com_sobipro\opt\fields\geomap.php
and find the code:
SPFactory::header()->addJsUrl( 'maps.google.com/maps/api/js?sensor='.( $this->determineLocation ? 'true' : 'false' ) );
=> Edit code to:
SPFactory::header()->addJsUrl( 'maps.google.com/maps/api/js?key=AIzaSyBaeYfTIyvWkCMqvtMqigOkho69kiL3QUY&sensor='.( $this->determineLocation ? 'true' : 'false' ) );

and find:
SPFactory::header()->addJsUrl( 'maps.google.com/maps/api/js?sensor='.( $this->determineLocation ? 'true' : 'false' ) );
=> Edit to:
SPFactory::header()->addJsUrl( 'maps.google.com/maps/api/js?key=AIzaSyBaeYfTIyvWkCMqvtMqigOkho69kiL3QUY&sensor='.( $this->determineLocation ? 'true' : 'false' ) );

you can replace the key by your key

Then go to admin >> Component >> Sobipro >> Edit Global Configuration
In Optimisation tab, please set No in all Cache option:
prntscr.com/e6wgvv
then load your site

then you can enable the cache option again for better performance

Thanks