Add exception handling for missing keys
Add exception handling for missing keys

dainst/gazetteer,dainst/gazetteer,codarchlab/gazetteer,dainst/gazetteer,codarchlab/gazetteer,dainst/gazetteer,codarchlab/gazetteer,dainst/gazetteer,codarchlab/gazetteer,codarchlab/gazetteer,dainst/gazetteer